結果
問題 | No.2558 中国剰余定理 |
ユーザー | VvyLw |
提出日時 | 2023-12-03 17:34:41 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 145 ms / 2,000 ms |
コード長 | 43,314 bytes |
コンパイル時間 | 6,431 ms |
コンパイル使用メモリ | 109,092 KB |
実行使用メモリ | 41,780 KB |
最終ジャッジ日時 | 2024-09-26 22:12:20 |
合計ジャッジ時間 | 11,980 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge1 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 140 ms
41,716 KB |
testcase_01 | AC | 128 ms
40,336 KB |
testcase_02 | AC | 134 ms
41,028 KB |
testcase_03 | AC | 143 ms
41,780 KB |
testcase_04 | AC | 142 ms
41,640 KB |
testcase_05 | AC | 128 ms
40,328 KB |
testcase_06 | AC | 141 ms
41,724 KB |
testcase_07 | AC | 145 ms
41,484 KB |
testcase_08 | AC | 133 ms
40,384 KB |
testcase_09 | AC | 140 ms
41,260 KB |
testcase_10 | AC | 138 ms
40,296 KB |
testcase_11 | AC | 126 ms
40,172 KB |
testcase_12 | AC | 139 ms
41,280 KB |
testcase_13 | AC | 136 ms
40,468 KB |
testcase_14 | AC | 140 ms
41,472 KB |
testcase_15 | AC | 134 ms
40,172 KB |
testcase_16 | AC | 139 ms
40,484 KB |
testcase_17 | AC | 136 ms
40,360 KB |
testcase_18 | AC | 144 ms
41,452 KB |
testcase_19 | AC | 141 ms
41,500 KB |
testcase_20 | AC | 142 ms
41,296 KB |
testcase_21 | AC | 138 ms
41,460 KB |
testcase_22 | AC | 145 ms
41,260 KB |
testcase_23 | AC | 137 ms
40,136 KB |
testcase_24 | AC | 138 ms
41,288 KB |
testcase_25 | AC | 126 ms
40,316 KB |
testcase_26 | AC | 132 ms
40,916 KB |
testcase_27 | AC | 140 ms
41,456 KB |
testcase_28 | AC | 140 ms
41,200 KB |
testcase_29 | AC | 140 ms
41,476 KB |
testcase_30 | AC | 142 ms
41,468 KB |
testcase_31 | AC | 142 ms
41,520 KB |
ソースコード
import java.io.OutputStream; import java.io.PrintWriter; import java.math.BigInteger; import java.util.ArrayDeque; import java.util.ArrayList; import java.util.Arrays; import java.util.Collection; import java.util.Collections; import java.util.Comparator; import java.util.List; import java.util.PriorityQueue; import java.util.Queue; import java.util.Scanner; import java.util.Stack; import java.util.TreeMap; import java.util.function.BiFunction; import java.util.function.BiPredicate; import java.util.function.BinaryOperator; import java.util.function.Consumer; import java.util.function.Predicate; import java.util.stream.Collectors; import java.util.stream.IntStream; class VvyLw extends Utility { protected static final MyScanner sc = new MyScanner(); protected static final MyPrinter o = new MyPrinter(System.out, false); protected static final MyPrinter e = new MyPrinter(System.err, true); static final int[] dx = {0, -1, 1, 0, 0, -1, -1, 1, 1}; static final int[] dy = {0, 0, 0, -1, 1, -1, 1, -1, 1}; static final int inf = 1 << 30; static final long linf = (1L << 61) - 1; static final int mod998 = 998244353; static final int mod107 = (int)1e9 + 7; protected static void solve() { final int a = sc.ni(), b = sc.ni(), c = sc.ni(), d = sc.ni(); final var x = new NumPair(a, b).extgcd().first.longValue(); long ans = ((a * x) * (d - c) + c) % (a * b); o.out((ans + (a * b)) % (a * b)); } } class Main extends VvyLw { public static void main(final String[] args) { int t = 1; //t = sc.ni(); while(t-- > 0) { solve(); } o.flush(); sc.close(); o.close(); e.close(); } } class Utility { protected static String yes(final boolean ok){ return ok ? "Yes" : "No"; } protected static String no(final boolean ok){ return yes(!ok); } protected static long sqr(final long x){ return x * x; } protected static int mod(final long n, final int m){ return (int) ((n + m) % m); } protected static long intCeil(long a, long b){ return (long) Math.ceil((double)a / b); } protected static long intPow(long a, int b) { long res = 1; while(b > 0) { if(b % 2 == 1) { res *= a; } a *= a; b >>= 1; } return res; } protected static long intPow(long a, long b, final int m) { long res = 1; while(b > 0) { if(b % 2 == 1) { res *= a; res = mod(res, m); } a *= a; a = mod(a, m); b >>= 1; } return res; } protected static ArrayList<Long> div(final long n) { ArrayList<Long> d = new ArrayList<>(); for(long i = 1; i * i <= n; ++i) { if(n % i == 0) { d.add(i); if(i * i != n) { d.add(n / i); } } } Collections.sort(d); return d; } protected static ArrayList<Pair<Long, Integer>> primeFactor(long n) { ArrayList<Pair<Long, Integer>> pf = new ArrayList<>(); for(long i = 2; i * i <= n; ++i) { if(n % i != 0) { continue; } int cnt = 0; while(n % i == 0) { cnt++; n /= i; } pf.add(Pair.of(i, cnt)); } if(n != 1) { pf.add(Pair.of(n, 1)); } return pf; } protected static long binom(int a, final int b) { long res = 1; for(int i = 1; i <= b; ++i) { res *= a--; res /= i; } return res; } protected static boolean isInt(final double n){ long r = (long) Math.floor(n); return r == n; } protected static boolean isSqr(final long n){ return isInt(Math.sqrt(n)); } protected static boolean isPrime(final long n) { if(n == 1) return false; for(long i = 2; i * i <= n; ++i) { if(n % i == 0) return false; } return true; } protected static boolean nextPerm(ArrayList<Integer> a) { for(int i = a.size() - 1; i > 0; i--) { if(a.get(i - 1).compareTo(a.get(i)) < 0) { final int j = find(a.get(i - 1), a, i, a.size() - 1); Collections.swap(a, i - 1, j); Collections.sort(a.subList(i, a.size())); return true; } } return false; } private static <T extends Comparable<? super T>> int find(final T dest, final ArrayList<T> a, final int s, final int e) { if (s == e) return s; final int m = (s + e + 1) / 2; return a.get(m).compareTo(dest) <= 0 ? find(dest, a, s, m - 1) : find(dest, a, m, e); } protected static boolean binarySearch(final int[] a, final int x) { return Arrays.binarySearch(a, x) >= 0; } protected static boolean binarySearch(final long[] a, final long x) { return Arrays.binarySearch(a, x) >= 0; } protected static int lowerBound(final List<Integer> a, final int x) { return ~Collections.binarySearch(a, x, (p, q) -> p.compareTo(q) >= 0 ? 1 : -1); } protected static int lowerBound(final List<Long> a, final long x) { return ~Collections.binarySearch(a, x, (p, q) -> p.compareTo(q) >= 0 ? 1 : -1); } protected static int upperBound(final List<Integer>a, final int x) { return ~Collections.binarySearch(a, x, (p, q) -> p.compareTo(q) > 0 ? 1 : -1); } protected static int upperBound(final List<Long> a, final long x) { return ~Collections.binarySearch(a, x, (p, q) -> p.compareTo(q) > 0 ? 1 : -1); } protected static int[] reverse(final int[] a) { final int n = a.length; int[] b = new int[n]; for(int i = 0; i <= n / 2; ++i) { b[i] = a[n - 1 - i]; b[n - 1 - i] = a[i]; } return b; } protected static long[] reverse(final long[] a) { final int n = a.length; long[] b = new long[n]; for(int i = 0; i <= n / 2; ++i) { b[i] = a[n - 1 - i]; b[n - 1 - i] = a[i]; } return b; } protected static double[] reverse(final double[] a) { final int n = a.length; double[] b = new double[n]; for(int i = 0; i <= n / 2; ++i) { b[i] = a[n - 1 - i]; b[n - 1 - i] = a[i]; } return b; } protected static Object[] reverse(final Object[] a) { final int n = a.length; Object[] b = new Object[n]; for(int i = 0; i <= n / 2; ++i) { b[i] = a[n - 1 - i]; b[n - 1 - i] = a[i]; } return b; } protected static int[] rotate(final int[] a, final int id) { ArrayList<Integer> t = new ArrayList<>(a.length); for(final var el: a) { t.add(el); } Collections.rotate(t, id); int[] res = new int[t.size()]; for(int i = 0; i < t.size(); ++i) { res[i] = t.get(i); } return res; } protected static long[] rotate(final long[] a, final int id) { ArrayList<Long> t = new ArrayList<>(a.length); for(final var el: a) { t.add(el); } Collections.rotate(t, id); long[] res = new long[t.size()]; for(int i = 0; i < t.size(); ++i) { res[i] = t.get(i); } return res; } protected static double[] rotate(final double[] a, final int id) { ArrayList<Double> t = new ArrayList<>(a.length); for(final var el: a) { t.add(el); } Collections.rotate(t, id); double[] res = new double[t.size()]; for(int i = 0; i < t.size(); ++i) { res[i] = t.get(i); } return res; } protected static String rotate(final String s, final int id) { ArrayList<Character> t = new ArrayList<>(); for(final char c: s.toCharArray()) { t.add(c); } Collections.rotate(t, id); StringBuilder sb = new StringBuilder(); for(final var c: t) { sb.append(c); } return sb.toString(); } protected static int[][] rotate(final int[][] a) { final int h = a.length, w = a[0].length; int[][] b = new int[w][h]; IntStream.range(0, h).forEach(i -> { IntStream.range(0, w).forEach(j -> b[j][i] = a[i][j]); }); IntStream.range(0, w).forEach(i -> b[i] = reverse(b[i])); return b; } protected static long[][] rotate(final long[][] a) { final int h = a.length, w = a[0].length; long[][] b = new long[w][h]; IntStream.range(0, h).forEach(i -> { IntStream.range(0, w).forEach(j -> b[j][i] = a[i][j]); }); IntStream.range(0, w).forEach(i -> b[i] = reverse(b[i])); return b; } protected static double[][] rotate(final double[][] a) { final int h = a.length, w = a[0].length; double[][] b = new double[w][h]; IntStream.range(0, h).forEach(i -> { IntStream.range(0, w).forEach(j -> b[j][i] = a[i][j]); }); IntStream.range(0, w).forEach(i -> b[i] = reverse(b[i])); return b; } protected static String[] rotate(final String[] s) { final int h = s.length, w = s[0].length(); char[][] t = new char[w][h]; IntStream.range(0, h).forEach(i -> { IntStream.range(0, w).forEach(j -> t[j][i] = s[i].charAt(j)); }); IntStream.range(0, w).forEach(i -> t[i] = new StringBuilder(new String(t[i])).reverse().toString().toCharArray()); String[] res = new String[w]; IntStream.range(0, w).forEach(i -> res[i] = new String(t[i])); return res; } protected static long lcm(final long a, final long b){ return a * b / gcd(a, b); } protected static long gcd(final long a, final long b){ return b > 0 ? gcd(b, a % b) : a; } protected static long lcm(final long... a){ return Arrays.stream(a).reduce(1, (x, y) -> lcm(x, y)); } protected static long gcd(final long... a){ return Arrays.stream(a).reduce(0, (x, y) -> gcd(x, y)); } protected static long min(final long... a){ return Arrays.stream(a).reduce(Long.MAX_VALUE, (x, y) -> Math.min(x, y)); } protected static long max(final long... a){ return Arrays.stream(a).reduce(Long.MIN_VALUE, (x, y) -> Math.max(x, y)); } protected static <F, S> ArrayList<F> first(final List<Pair<F, S>> p) { ArrayList<F> f = new ArrayList<>(); for(final var el: p) { f.add(el.first); } return f; } protected static <F, S> ArrayList<S> second(final List<Pair<F, S>> p) { ArrayList<S> s = new ArrayList<>(); for(final var el: p) { s.add(el.second); } return s; } protected static int[] iota(final int n){ return IntStream.range(0, n).toArray(); } protected static int[] iota(final int n, final int init){ return IntStream.range(0 + init, n + init).toArray(); } protected static long bins(long ok, long ng, final Predicate<Long> fn) { while(Math.abs(ok - ng) > 1) { final long mid = (ok + ng) / 2; if(fn.test(mid)) { ok = mid; } else { ng = mid; } } return ok; } protected static ArrayList<Integer> press(final ArrayList<Long> a) { ArrayList<Integer> res = new ArrayList<>(); final var cp = a.stream().sorted().distinct().collect(Collectors.toList()); for(final var el: a) { res.add(lowerBound(cp, el)); } return res; } protected static int[] zAlgorithm(final String s) { final int n = s.length(); int j = 0; int[] pre = new int[n]; for(int i = 0; ++i < n;) { if(i + pre[i - j] < j + pre[j]) { pre[i] = pre[i - j]; } else { int k = Math.max(0, j + pre[j] - i); while(i + k < n && s.charAt(k) == s.charAt(i + k)) { ++k; } pre[i] = k; j = i; } } pre[0] = n; return pre; } protected static int[] manacher(final String s_, final boolean calcEven) { int n = s_.length(); char[] s; if(calcEven) { s = new char[2 * n - 1]; IntStream.range(0, n).forEach(i -> s[i] = s_.charAt(i)); for(int i = n; --i >= 0;) { s[2 * i] = s_.charAt(i); } final var d = Collections.min(s_.chars().mapToObj(c -> (char) c).collect(Collectors.toList())); for(int i = 0; i < n - 1; ++i) { s[2 * i + 1] = d; } } else { s = new char[n]; IntStream.range(0, n).forEach(i -> s[i] = s_.charAt(i)); } n = s.length; int[] rad = new int[n]; for(int i = 0, j = 0; i < n;) { while(i - j >= 0 && i + j < n && s[i - j] == s[i + j]) { ++j; } rad[i] = j; int k = 1; while(i - k >= 0 && i + k < n && k + rad[i - k] < j) { rad[i + k] = rad[i - k]; ++k; } i += k; j -= k; } if(calcEven) { for(int i = 0; i < n; ++i) { if(((i ^ rad[i]) & 1) == 0) { rad[i]--; } } } else { for(var x: rad) { x = 2 * x - 1; } } return rad; } protected static long kthRoot(final long n, final int k) { if(k == 1) { return n; } final Predicate<Long> chk = (x) -> { long mul = 1; for(int j = 0; j < k; ++j) { try { mul = Math.multiplyExact(mul, x); } catch(ArithmeticException e) { return false; } } return mul <= n; }; long ret = 0; for(int i = 32; --i >= 0;) { if(chk.test(ret | (1L << i))) { ret |= 1L << i; } } return ret; } } class MyScanner { private Scanner sc = new Scanner(System.in); int ni(){ return sc.nextInt(); } long nl(){ return sc.nextLong(); } double nd(){ return sc.nextDouble(); } String ns(){ return sc.next(); } int[] ni(final int n){ int[] a = new int[n]; IntStream.range(0, n).forEach(i -> a[i] = ni()); return a; } long[] nl(final int n){ long[] a = new long[n]; IntStream.range(0, n).forEach(i -> a[i] = nl()); return a; } double[] nd(final int n){ double[] a = new double[n]; IntStream.range(0, n).forEach(i -> a[i] = nd()); return a; } String[] ns(final int n){ String[] a = new String[n]; IntStream.range(0, n).forEach(i -> a[i] = ns()); return a; } ArrayList<Integer> nia(final int n) { var a = new ArrayList<Integer>(n); IntStream.range(0, n).forEach(i -> a.add(i, ni())); return a; } ArrayList<Long> nla(final int n) { var a = new ArrayList<Long>(n); IntStream.range(0, n).forEach(i -> a.add(i, nl())); return a; } ArrayList<Double> nda(final int n) { var a = new ArrayList<Double>(n); IntStream.range(0, n).forEach(i -> a.add(i, nd())); return a; } ArrayList<String> nsa(final int n) { var a = new ArrayList<String>(n); IntStream.range(0, n).forEach(i -> a.add(i, ns())); return a; } void close(){ sc.close(); } } class MyPrinter { private PrintWriter pw; MyPrinter(final OutputStream os, final boolean flush){ pw = new PrintWriter(os, flush); } void print(final Object arg){ pw.print(arg); } void out(){ pw.println(); } void out(final Object head, final Object... tail) { pw.print(head); for(final var el: tail) { pw.print(" " + el); } out(); } <F, S> void out(final Pair<F, S> arg){ pw.println(arg.first + " " + arg.second); } void out(final int[] args){ IntStream.range(0, args.length).forEach(i -> pw.print(args[i] + (i + 1 < args.length ? " " : "\n"))); } void out(final long[] args){ IntStream.range(0, args.length).forEach(i -> pw.print(args[i] + (i + 1 < args.length ? " " : "\n"))); } void out(final double[] args){ IntStream.range(0, args.length).forEach(i -> pw.print(args[i] + (i + 1 < args.length ? " " : "\n"))); } void out(final boolean[] args){ IntStream.range(0, args.length).forEach(i -> pw.print(args[i] + (i + 1 < args.length ? " " : "\n"))); } void out(final char[] args){ IntStream.range(0, args.length).forEach(i -> pw.print(args[i] + (i + 1 < args.length ? " " : "\n"))); } void out(final Object[] args){ IntStream.range(0, args.length).forEach(i -> pw.print(args[i] + (i + 1 < args.length ? " " : "\n"))); } <T> void out(final List<T> args){ IntStream.range(0, args.size()).forEach(i -> pw.print(args.get(i) + (i + 1 < args.size() ? " " : "\n"))); } void outl(final Object head, final Object... tail) { out(head); Arrays.stream(tail).forEach(pw::println); } void outl(final int[] args){ Arrays.stream(args).forEach(pw::println); } void outl(final int[][] args){ IntStream.range(0, args.length).forEach(i -> out(args[i])); } void outl(final long[] args){ Arrays.stream(args).forEach(pw::println); } void outl(final long[][] args){ IntStream.range(0, args.length).forEach(i -> out(args[i])); } void outl(final double[] args){ Arrays.stream(args).forEach(pw::println); } void outl(final double[][] args){ IntStream.range(0, args.length).forEach(i -> out(args[i])); } void outl(final boolean[] args){ IntStream.range(0, args.length).forEach(i -> out(args[i])); } void outl(final boolean[][] args){ IntStream.range(0, args.length).forEach(i -> out(args[i])); } void outl(final char[] args){ IntStream.range(0, args.length).forEach(i -> out(args[i])); } void outl(final Object[] args){ Arrays.stream(args).forEach(pw::println); } <E> void outl(final Collection<E> args){ args.stream().forEach(pw::println); } void fin(final Object head, final Object... tail) { out(head, tail); flush(); System.exit(0); } <T> void fin(final List<T> args) { out(args); flush(); System.exit(0); } <E> void fine(final Collection<E> args) { outl(args); flush(); System.exit(0); } void flush(){ pw.flush(); } void close(){ pw.close(); } } class Pair<F, S> { protected final F first; protected final S second; Pair(final F first, final S second) { this.first = first; this.second = second; } @Override public boolean equals(final Object o) { if(this == o) { return true; } if(o == null || getClass() != o.getClass()) { return false; } final Pair<?, ?> p = (Pair<?, ?>) o; if(!first.equals(p.first)) { return false; } return second.equals(p.second); } @Override public int hashCode(){ return 31 * first.hashCode() + second.hashCode(); } @Override public String toString(){ return "(" + first + ", " + second + ")"; } public static <F, S> Pair<F, S> of(final F a, final S b){ return new Pair<>(a, b); } Pair<S, F> swap(){ return Pair.of(second, first); } } class NumPair extends Pair<Number, Number> implements Comparable<NumPair> { NumPair(final Number first, final Number second){ super(first, second); } NumPair rotate(){ return new NumPair(-second.doubleValue(), first.doubleValue()); } NumPair rotate(final int ang) { final double rad = Math.toRadians(Utility.mod(ang, 360)); return new NumPair(first.doubleValue() * Math.cos(rad) - second.doubleValue() * Math.sin(rad), first.doubleValue() * Math.sin(rad) + second.doubleValue() * Math.cos(rad)); } long dot(final NumPair p){ return first.longValue() * p.first.longValue() + second.longValue() + p.second.longValue(); } long cross(final NumPair p){ return this.rotate().dot(p); } long square(){ return this.dot(this); } double grad() { try { return second.doubleValue() / first.doubleValue(); } catch(ArithmeticException e) { e.printStackTrace(); return Double.NaN; } } double abs(){ return Math.hypot(first.doubleValue(), second.doubleValue()); } double lcm(){ return Utility.lcm(first.longValue(), second.longValue()); } double gcd(){ return Utility.gcd(first.longValue(), second.longValue()); } NumPair extgcd() { long x = 1, y = 0, t1 = 0, t2 = 0, t3 = 1, a = first.longValue(), b = second.longValue(); while(b > 0) { t1 = a / b; a -= t1 * b; a ^= b; b ^= a; a ^= b; x -= t1 * t2; x ^= t2; t2 ^= x; x ^= t2; y -= t1 * t3; y ^= t3; t3 ^= y; y ^= t3; } return new NumPair(x, y); } @Override public int compareTo(final NumPair o) { if(first.doubleValue() == o.first.doubleValue()) { return Double.compare(second.doubleValue(), o.second.doubleValue()); } return Double.compare(first.doubleValue(), o.first.doubleValue()); } } class UnionFind { private int[] par; UnionFind(final int n) { par = new int[n]; Arrays.fill(par, -1); } int root(final int i){ return par[i] >= 0 ? par[i] = root(par[i]) : i; } int size(final int i){ return -par[root(i)]; } boolean unite(int i, int j) { i = root(i); j = root(j); if(i == j) return false; if(i > j) { i ^= j; j ^= i; i ^= j; } par[i] += par[j]; par[j] = i; return true; } boolean same(final int i, final int j){ return root(i) == root(j); } ArrayList<ArrayList<Integer>> groups() { final int n = par.length; ArrayList<ArrayList<Integer>> res = new ArrayList<>(n); IntStream.range(0, n).forEach(i -> res.add(new ArrayList<>())); IntStream.range(0, n).forEach(i -> res.get(root(i)).add(i)); res.removeIf(ArrayList::isEmpty); return res; } boolean is_bipartite() { final int n = par.length / 2; boolean ok = true; for(int i = 0; i < n; ++i) { ok &= root(i) != root(i + n); } return ok; } } class WeightedUnionFind { private int[] par; private long[] weight; WeightedUnionFind(final int n) { par = new int[n]; weight = new long[n]; Arrays.fill(par, -1); } int root(final int i) { if(par[i] < 0) { return i; } final int r = root(par[i]); weight[i] += weight[par[i]]; return par[i] = r; } long get(final int i) { root(i); return weight[i]; } long diff(final int x, final int y){ return get(y) - get(x); } int unite(int x, int y, long w) { w += diff(y, x); x = root(x); y = root(y); if(x == y) { return w == 0 ? 0 : -1; } if(par[x] > par[y]) { x ^= y; y ^= x; x ^= y; w = -w; } par[x] += par[y]; par[y] = x; weight[y] = w; return 1; } boolean same(final int x, final int y){ return root(x) == root(y); } } class UndoUnionFind { private int[] par; private Stack<Pair<Integer, Integer>> his; UndoUnionFind(final int n) { par = new int[n]; Arrays.fill(par, -1); his = new Stack<>(); } boolean unite(int x, int y) { x = root(x); y = root(y); his.add(Pair.of(x, par[x])); his.add(Pair.of(y, par[y])); if(x == y) { return false; } if(par[x] > par[y]) { x ^= y; y ^= x; x ^= y; } par[x] += par[y]; par[y] = x; return true; } int root(final int i) { if(par[i] < 0) { return i; } return root(par[i]); } int size(final int i){ return -par[root(i)]; } void undo() { final Pair<Integer, Integer> pop1 = his.pop(), pop2 = his.pop(); par[pop1.first] = pop1.second; par[pop2.first] = pop2.second; } void snapshot() { while(!his.empty()) { his.pop(); } } void rollback() { while(!his.empty()) { undo(); } } } class Edge { public int src; public int to; public long cost; Edge(final int to) { this.to = to; } Edge(final int to, final long cost) { this.to = to; this.cost = cost; } Edge(final int src, final int to, final long cost) { this.src = src; this.to = to; this.cost = cost; } @Override public boolean equals(final Object o) { if(this == o) { return true; } if(o == null || getClass() != o.getClass()) { return false; } final Edge e = (Edge) o; if(src != e.src) { return false; } if(to != e.to) { return false; } return cost == e.cost; } @Override public int hashCode() { int result = 17; result = 31 * result + src; result = 31 * result + to; result = 31 * result + (int) (cost ^ (cost >>> 32)); // XOR for long values return result; } @Override public String toString(){ return src + " " + to + " " + cost; } } class Graph extends ArrayList<ArrayList<Edge>> { protected boolean undirected; protected int n, indexed; Graph(final int n, final int indexed, final boolean undirected) { this.n = n; this.indexed = indexed; this.undirected = undirected; IntStream.range(0, n).forEach(i -> this.add(new ArrayList<>())); } void addEdge(int a, int b) { a -= indexed; b -= indexed; this.get(a).add(new Edge(b)); if(undirected) { this.get(b).add(new Edge(a)); } } protected int[] allDist(final int v) { int[] d = new int[n]; Arrays.fill(d, -1); Queue<Integer> q = new ArrayDeque<>(); d[v] = 0; q.add(v); while(!q.isEmpty()) { final int tmp = q.poll(); for(final var el: this.get(tmp)) { if(d[el.to] != -1) { continue; } d[el.to]=d[tmp]+1; q.add(el.to); } } return d; } protected int dist(final int u, final int v){ return allDist(u)[v]; } } class WeightedGraph extends Graph { WeightedGraph(final int n, final int indexed, final boolean undirected) { super(n, indexed, undirected); } void addEdge(int a, int b, final long cost) { a -= indexed; b -= indexed; this.get(a).add(new Edge(b, cost)); if(undirected) { this.get(b).add(new Edge(a, cost)); } } long[] dijkstra(final int v) { long[] cost = new long[n]; Arrays.fill(cost, Long.MAX_VALUE); Queue<NumPair> dj = new PriorityQueue<>(Collections.reverseOrder()); cost[v] = 0; dj.add(new NumPair(cost[v], v)); while(!dj.isEmpty()) { final var tmp = dj.poll(); if(cost[tmp.second.intValue()] < tmp.first.longValue()) { continue; } for(final var el: this.get(tmp.second.intValue())) { if(cost[el.to] > tmp.first.longValue() + el.cost) { cost[el.to] = tmp.first.longValue() + el.cost; dj.add(new NumPair(cost[el.to], el.to)); } } } return cost; } long[][] warshallFloyd() { long[][] cost = new long[n][n]; IntStream.range(0, n).forEach(i -> Arrays.fill(cost[i], Long.MAX_VALUE)); IntStream.range(0, n).forEach(i -> cost[i][i] = 0); for(int i = 0; i < n; ++i) { for(final var j: this.get(i)) { cost[i][j.to] = j.cost; } } for(int k = 0 ; k < n; ++k) { for(int i = 0; i < n; ++i) { for(int j = 0; j < n; ++j) { if(cost[i][j] > cost[i][k] + cost[k][j]) { cost[i][j] = cost[i][k] + cost[k][j]; } } } } return cost; } } class Tree { private ArrayList<Edge> edge; private int n, indexed; Tree(final int n, final int indexed) { edge = new ArrayList<>(n); this.n = n; this.indexed = indexed; } void addEdge(final int a, final int b, final long cost){ edge.add(new Edge(a - indexed, b - indexed, cost)); } long kruskal() { Collections.sort(edge, Comparator.comparing(e -> e.cost)); UnionFind uf = new UnionFind(n); long res = 0; for(final var ed: edge) { if(uf.unite(ed.src, ed.to)) { res += ed.cost; } } return res; } } class LowestCommonAncestor<G extends Graph> { private int log; int[] dep; private G g; int[][] table; LowestCommonAncestor(final G g) { this.g = g; final int n = g.size(); dep = new int[n]; log = Integer.toBinaryString(n).length(); table = new int[log][n]; IntStream.range(0, log).forEach(i -> Arrays.fill(table[i], -1)); build(); } private void dfs(final int idx, final int par, final int d) { table[0][idx] = par; dep[idx] = d; for(final var el: g.get(idx)) { if(el.to != par) { dfs(el.to, idx, d + 1); } } } private void build() { dfs(0, -1, 0); for(int k = 0; k < log - 1; ++k) { for(int i = 0; i < table[k].length; ++i) { if(table[k][i] == -1) { table[k + 1][i] = -1; } else { table[k + 1][i] = table[k][table[k][i]]; } } } } int query(int u, int v) { if(dep[u] > dep[v]) { u ^= v; v ^= u; u ^= v; } for(int i = log; --i >= 0;) { if(((dep[v] - dep[u]) >> i) % 2 == 1) { v = table[i][v]; } } if(u == v) { return u; } for(int i = log; --i >= 0;) { if(table[i][u] != table[i][v]) { u = table[i][u]; v = table[i][v]; } } return table[0][u]; } int dist(final int u, final int v){ return dep[u] + dep[v] - 2 * query(u, v); } } class PrimeTable { private int n; private boolean[] sieve; PrimeTable(final int n) { this.n = n; sieve = new boolean[n + 1]; Arrays.fill(sieve, true); sieve[0] = sieve[1] = false; for(long i = 2; i <= n; ++i) { if(!sieve[(int) i]) { continue; } for(long j = i * i; j <= n; j += i) { sieve[(int) j] = false; } } } boolean[] table(){ return sieve; } ArrayList<Integer> get() { ArrayList<Integer> p = new ArrayList<>();; for(int i = 2; i <= n; ++i) { if(sieve[i]) { p.add(i); } } return p; } } class PrimeFactor { private int[] spf; PrimeFactor(final int n) { spf = IntStream.rangeClosed(0, n).toArray(); for(int i = 2; i * i <= n; ++i) { if(spf[i] == i) { for(int j = i * i; j <= n; j += i) { if(spf[j] == j) { spf[j] = i; } } } } } TreeMap<Integer, Integer> get(int n) { TreeMap<Integer, Integer> m = new TreeMap<>(); while(n != 1) { m.merge(spf[n], 1, (a, b) -> (a + b)); n /= spf[n]; } return m; } } class PrimeCounter { private int sq; private boolean[] p; private int[] psum; private ArrayList<Integer> ps; PrimeCounter(final long lim) { sq = (int) kthRooti(lim, 2); psum = new int[sq + 1]; p = new PrimeTable(sq).table(); for(int i = 1; i <= sq; ++i) { psum[i] = psum[i - 1] + (p[i] ? 1 : 0); } ps = new ArrayList<>(); for(int i = 1; i <= sq; ++i) { if(p[i]) { ps.add(i); } } } private long kthRooti(final long n, final int k){ return Utility.kthRoot(n, k); } private long p2(final long x, final long y) { if(x < 4) { return 0; } final long a = pi(y); final long b = pi(kthRooti(x, 2)); if(a >= b) { return 0; } long sum = (long) (a - 2) * (a + 1) / 2 - (b - 2) * (b + 1) / 2; for(long i = a; i < b; ++i) { sum += pi(x / ps.get((int) i)); } return sum; } private long phi(final long m, final long a) { if(m < 1) { return 0; } if(a > m) { return 1; } if(a < 1) { return m; } if(m <= (long) ps.get((int) (a - 1)) * ps.get((int) (a - 1))) { return pi(m) - a + 1; } if(m <= (long) ps.get((int) (a - 1)) * ps.get((int) (a - 1)) * ps.get((int) (a - 1)) && m <= sq) { final long sx = pi(kthRooti(m, 2)); long ans = pi(m) - (long) (sx + a - 2) * (sx - a + 1) / 2; for(long i = a; i < sx; ++i) { ans += pi(m / ps.get((int) i)); } return ans; } return phi(m, a - 1) - phi(m / ps.get((int) (a - 1)), a - 1); } long pi(final long n) { if(n <= sq) { return psum[(int) n]; } final long m = kthRooti(n, 3); final long a = pi(m); return phi(n, a) + a - 1 - p2(n, m); } } // N <= 1e18; class LongPrime { private int bsf(final long x){ return Long.numberOfTrailingZeros(x); } private long gcd(long a, long b) { a = Math.abs(a); b = Math.abs(b); if(a == 0) { return b; } if(b == 0) { return a; } final int shift = bsf(a|b); a >>= bsf(a); do { b >>= bsf(b); if(a > b) { a ^= b; b ^= a; a ^= b; } b -= a; } while(b > 0); return a << shift; } boolean isPrime(final long n) { if(n <= 1) { return false; } if(n == 2) { return true; } if(n % 2 == 0) { return false; } long d = n - 1; while(d % 2 == 0) { d /= 2; } final long[] sample = {2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37}; for(final long a: sample) { if(n <= a) { break; } long t = d; BigInteger y = BigInteger.valueOf(a).modPow(BigInteger.valueOf(t), BigInteger.valueOf(n)); while(t != n - 1 && !y.equals(BigInteger.ONE) && !y.equals(BigInteger.valueOf(n).subtract(BigInteger.ONE))) { y = y.multiply(y).mod(BigInteger.valueOf(n)); t <<= 1; } if(!y.equals(BigInteger.valueOf(n).subtract(BigInteger.ONE)) && t % 2 == 0) { return false; } } return true; } private long find(final long n) { if(isPrime(n)) { return n; } if(n % 2 == 0) { return 2; } long st = 0; final BiFunction<Long, Long, Long> f = (x, y) -> { return BigInteger.valueOf(x).multiply(BigInteger.valueOf(x)).add(BigInteger.valueOf(y)).mod(BigInteger.valueOf(n)).longValue(); }; while(true) { st++; long x = st, y = f.apply(x, st); while(true) { final long p = gcd(y - x + n, n); if(p == 0 || p == n) { break; } if(p != 1) { return p; } x = f.apply(x, st); y = f.apply(f.apply(y, st), st); } } } ArrayList<Long> primeFactor(final long n) { if(n == 1) return new ArrayList<>(); final long x = find(n); if(x == n) return new ArrayList<>(Arrays.asList(x)); ArrayList<Long> l = primeFactor(x); final ArrayList<Long> r = primeFactor(n / x); l.addAll(r); Collections.sort(l); return l; } } // N > 1e18 class BigPrime { protected int bsf(final long x){ return Long.numberOfTrailingZeros(x); } private BigInteger gcd(BigInteger a, BigInteger b) { a = a.abs(); b = b.abs(); if(a.equals(BigInteger.ZERO)) { return b; } if(b.equals(BigInteger.ZERO)) { return a; } final int shift = bsf(a.or(b).longValue()); a = a.shiftRight(bsf(a.longValue())); do { b = b.shiftRight(bsf(b.longValue())); if(a.compareTo(b) > 0) { final var tmp = b; b = a; a = tmp; } b = b.subtract(a); } while(b.compareTo(BigInteger.ZERO) > 0); return a.shiftLeft(shift); } boolean isPrime(final BigInteger n) { if(n.compareTo(BigInteger.ONE) <= 0) { return false; } if(n.equals(BigInteger.TWO)) { return true; } if(n.and(BigInteger.ONE).equals(BigInteger.valueOf(0))) { return false; } BigInteger d = n.subtract(BigInteger.ONE); while(d.and(BigInteger.ONE).equals(BigInteger.valueOf(0))) { d = d.shiftRight(1); } final long[] sample = {2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37}; for(final long a: sample) { if(n.compareTo(BigInteger.valueOf(a)) <= 0) { break; } BigInteger t = d; BigInteger y = BigInteger.valueOf(a).modPow(t, n); while(!t.equals(n.subtract(BigInteger.ONE)) && !y.equals(BigInteger.ONE) && !y.equals(n.subtract(BigInteger.ONE))) { y = y.multiply(y).mod(n); t = t.shiftLeft(1); } if(!y.equals(n.subtract(BigInteger.ONE)) && t.and(BigInteger.ONE).equals(BigInteger.ZERO)) { return false; } } return true; } private BigInteger find(final BigInteger n) { if(isPrime(n)) { return n; } if(n.and(BigInteger.ONE).equals(BigInteger.ZERO)) { return BigInteger.TWO; } int st = 0; final BiFunction<BigInteger, Integer, BigInteger> f = (x, y) -> { return x.multiply(x).add(BigInteger.valueOf(y)).mod(n); }; while(true) { st++; BigInteger x = BigInteger.valueOf(st), y = f.apply(x, st); while(true) { final BigInteger p = gcd(y.subtract(x).add(n), n); if(p.equals(BigInteger.ZERO) || p.equals(n)) { break; } if(!p.equals(BigInteger.ONE)) { return p; } x = f.apply(x, st); y = f.apply(f.apply(y, st), st); } } } ArrayList<BigInteger> primeFactor(final BigInteger n) { if(n.equals(BigInteger.ONE)) { return new ArrayList<>(); } final BigInteger x = find(n); if(x.equals(n)) { return new ArrayList<>(Arrays.asList(x)); } var l = primeFactor(x); final var r = primeFactor(n.divide(x)); l.addAll(r); Collections.sort(l); return l; } } class PrefixSum { private int n; private long[] s; PrefixSum(final int[] a) { n = a.length; s = new long[n + 1]; IntStream.range(0, n).forEach(i -> s[i + 1] = s[i] + a[i]); } PrefixSum(final long[] a) { n = a.length; s = new long[n + 1]; IntStream.range(0, n).forEach(i -> s[i + 1] = s[i] + a[i]); } long[] get(){ return s; } long query(final int l, final int r){ return s[r] - s[l]; } } class FenwickTree { private int n; private long[] data; FenwickTree(final int n) { this.n = n + 2; data = new long[this.n + 1]; } long sum(int k) { if(k < 0) return 0; long ret = 0; for(++k; k > 0; k -= k & -k) { ret += data[k]; } return ret; } long sum(final int l, final int r){ return sum(r) - sum(l - 1); } long get(final int k){ return sum(k) - sum(k - 1); } void add(int k, final long x) { for(++k; k < n; k += k & -k) { data[k] += x; } } void imos(final int l, final int r, long x) { add(l, x); add(r + 1, -x); } private int lg(final int n){ return 63 - Integer.numberOfLeadingZeros(n); } int lowerBound(long w) { if(w <= 0) { return 0; } int x = 0; for(int k = 1 << lg(n); k > 0; k >>= 1) { if(x + k <= n - 1 && data[x + k] < w) { w -= data[x + k]; x += k; } } return x; } int upper_bound(long w) { if(w < 0) { return 0; } int x = 0; for(int k = 1 << lg(n); k > 0; k >>= 1) { if(x + k <= n - 1 && data[x + k] <= w) { w -= data[x + k]; x += k; } } return x; } } class SegmentTree { private int n = 1, rank = 0, fini; private BinaryOperator<Long> op; private long e; private long[] dat; SegmentTree(final int fini, final BinaryOperator<Long> op, final long e) { this.fini = fini; this.op = op; this.e = e; while(this.fini > n) { n <<= 1; rank++; } dat = new long[2 * n]; Arrays.fill(dat, e); } void update(int i, final long x) { i += n; dat[i] = x; do { i >>= 1; dat[i] = op.apply(dat[2 * i], dat[2 * i + 1]); } while(i > 0); } void add(int i, final long x) { i += n; dat[i] += x; do { i >>= 1; dat[i] = op.apply(dat[2 * i], dat[2 * i + 1]); } while(i > 0); } long query(int a, int b) { long l=e,r=e; for(a += n, b += n; a < b; a >>= 1, b >>= 1) { if(a % 2 == 1) { l = op.apply(l, dat[a++]); } if(b % 2 == 1) { r = op.apply(dat[--b], r); } } return op.apply(l,r); } int findLeft(int r, final Predicate<Long> fn) { if(r == 0) { return 0; } int h = 0, i = r + n; long val = e; for(; h <= rank; h++) { if(i >> (h & 1) > 0) { final long val2 = op.apply(val, dat[i >> (h ^ 1)]); if(fn.test(val2)){ i -= 1 << h; if(i == n) { return 0; } val = val2; } else { break; } } } for(; h-- > 0;) { long val2 = op.apply(val, dat[(i >> h) - 1]); if(fn.test(val2)){ i -= 1 << h; if(i == n) { return 0; } val = val2; } } return i - n; } int findRight(int l, final Predicate<Long> fn) { if(l == fini) { return fini; } int h = 0, i = l + n; long val = e; for(; h <= rank; h++) { if(i >> (h & 1) > 0){ long val2 = op.apply(val, dat[i >> h]); if(fn.test(val2)){ i += 1 << h; if(i == n * 2) { return fini; } val = val2; } else { break; } } } for(; h-- > 0;) { long val2 = op.apply(val, dat[i>>h]); if(fn.test(val2)) { i += 1 << h; if(i == n * 2) { return fini; } val = val2; } } return Math.min(i - n, fini); } } class SparseTable { private long[][] st; private int[] lookup; private BinaryOperator<Long> op; SparseTable(final int[] a, final BinaryOperator<Long> op) { this.op = op; int b = 0; while((1 << b) <= a.length) { ++b; } st = new long[b][1 << b]; for(int i = 0; i < a.length; i++) { st[0][i] = a[i]; } for(int i = 1; i < b; i++) { for(int j = 0; j + (1 << i) <= (1 << b); j++) { st[i][j] = op.apply(st[i - 1][j], st[i - 1][j + (1 << (i - 1))]); } } lookup = new int[a.length + 1]; for(int i = 2; i < lookup.length; i++) { lookup[i] = lookup[i >> 1] + 1; } } SparseTable(final long[] a, final BinaryOperator<Long> op) { this.op = op; int b = 0; while((1 << b) <= a.length) { ++b; } st = new long[b][1 << b]; for(int i = 0; i < a.length; i++) { st[0][i] = a[i]; } for(int i = 1; i < b; i++) { for(int j = 0; j + (1 << i) <= (1 << b); j++) { st[i][j] = op.apply(st[i - 1][j], st[i - 1][j + (1 << (i - 1))]); } } lookup = new int[a.length + 1]; for(int i = 2; i < lookup.length; i++) { lookup[i] = lookup[i >> 1] + 1; } } long query(final int l, final int r) { final int b = lookup[r - l]; return op.apply(st[b][l], st[b][r - (1 << b)]); } int minLeft(final int x, final Predicate<Long> fn) { if(x == 0) { return 0; } int ok = x, ng = -1; while(Math.abs(ok - ng) > 1) { final int mid = (ok + ng) / 2; if(fn.test(query(mid, x) - 1)) { ok = mid; } else { ng = mid; } } return ok; } int maxRight(final int x, final Predicate<Long> fn) { if(x == lookup.length - 1) { return lookup.length - 1; } int ok = x, ng = lookup.length; while(Math.abs(ok - ng) > 1) { int mid = (ok + ng) / 2; if(fn.test(query(x, mid))) { ok = mid; } else { ng = mid; } } return ok; } } class SuffixArray extends ArrayList<Integer> { private String vs; SuffixArray(final String vs, final boolean compress) { this.vs = vs; int[] newVS = new int[vs.length() + 1]; if(compress) { final var xs = vs.chars().sorted().distinct().boxed().collect(Collectors.toList()); for(int i = 0; i < vs.length(); ++i) { newVS[i] = Utility.lowerBound(xs, vs.charAt(i)) + 1; } } else { final int d = vs.chars().min().getAsInt(); for(int i = 0; i < vs.length(); ++i) { newVS[i] = vs.charAt(i) - d + 1; } } this.addAll(Arrays.stream(SAIS(newVS)).boxed().collect(Collectors.toList())); } private int[] SAIS(final int[] s) { final int n = s.length; int[] ret = new int[n]; boolean[] isS = new boolean[n], isLMS = new boolean[n]; int m = 0; for(int i = n - 2; i >= 0; i--) { isS[i] = (s[i] > s[i + 1]) || (s[i] == s[i + 1] && isS[i + 1]); m += (isLMS[i + 1] = isS[i] && !isS[i + 1]) ? 1 : 0; } final Consumer<ArrayList<Integer>> inducedSort = (lms) -> { final int upper = Arrays.stream(s).max().getAsInt(); int[] l = new int[upper + 2], r = new int[upper + 2]; for(final var v: s) { ++l[v + 1]; ++r[v]; } Arrays.parallelPrefix(l, (x, y) -> x + y); Arrays.parallelPrefix(r, (x, y) -> x + y); Arrays.fill(ret, -1); for(int i = lms.size(); --i >= 0;) { ret[--r[s[lms.get(i)]]] = lms.get(i); } for(final var v: ret) { if(v >= 1 && isS[v - 1]) { ret[l[s[v - 1]]++] = v - 1; } } Arrays.fill(r, 0); for(final var v: s) { ++r[v]; } Arrays.parallelPrefix(r, (x, y) -> x + y); for(int k = ret.length - 1, i = ret[k]; k >= 1; i = ret[--k]) { if(i >= 1 && !isS[i - 1]) { ret[--r[s[i - 1]]] = i - 1; } } }; ArrayList<Integer> lms = new ArrayList<>(), newLMS = new ArrayList<>(); for(int i = 0; ++i < n;) { if(isLMS[i]) { lms.add(i); } } inducedSort.accept(lms); for(int i = 0; i < n; ++i) { if(!isS[ret[i]] && ret[i] > 0 && isS[ret[i] - 1]) { newLMS.add(ret[i]); } } final BiPredicate<Integer, Integer> same = (a, b) -> { if(s[a++] != s[b++]) { return false; } while(true) { if(s[a] != s[b]) { return false; } if(isLMS[a] || isLMS[b]) { return isLMS[a] && isLMS[b]; } a++; b++; } }; int rank = 0; ret[n - 1] = 0; for(int i = 0; ++i < m;) { if(!same.test(newLMS.get(i - 1), newLMS.get(i))) { ++rank; } ret[newLMS.get(i)] = rank; } if(rank + 1 < m) { int[] newS = new int[m]; for(int i = 0; i < m; ++i) { newS[i] = ret[lms.get(i)]; } final var lmsSA = SAIS(newS); IntStream.range(0, m).forEach(i -> newLMS.set(i, lms.get(lmsSA[i]))); } inducedSort.accept(newLMS); return ret; } boolean ltSubstr(final String t, int si, int ti) { final int sn = vs.length(), tn = t.length(); while(si < sn && ti < tn) { if(vs.charAt(si) < t.charAt(ti)) { return true; } if(vs.charAt(si) > t.charAt(ti)) { return false; } ++si; ++ti; } return si >= sn && ti < tn; } int lowerBound(final String t) { int ok = this.size(), ng = 0; while(ok - ng > 1) { final int mid = (ok + ng) / 2; if(ltSubstr(t, this.get(mid), 0)) { ng = mid; } else { ok = mid; } } return ok; } Pair<Integer, Integer> equalRange(final String t) { final int low = lowerBound(t); int ng = low - 1, ok = this.size(); var sb = new StringBuilder(t); sb.setCharAt(t.length() - 1, (char)(sb.charAt(sb.length() - 1) - 1)); final String u = sb.toString(); while(ok - ng > 1) { final int mid = (ok + ng) / 2; if(ltSubstr(u, this.get(mid), 0)) { ng = mid; } else { ok = mid; } } final int end = this.size() - 1; this.add(end, this.get(end) - 1); return Pair.of(low, ok); } int[] lcpArray() { final int n = this.size() - 1; int[] lcp = new int[n + 1], rank = new int[n + 1]; for(int i = 0; i <= n; ++i) { rank[this.get(i)] = i; } int h = 0; for(int i = 0; i <= n; ++i) { if(rank[i] < n) { final int j = this.get(rank[i] + 1); for(; j + h < n && i + h < n; ++h) { if(vs.charAt(j + h) != vs.charAt(i + h)) { break; } } lcp[rank[i] + 1] = h; if(h > 0) { h--; } } } return lcp; } @Override public String toString() { StringBuilder sb = new StringBuilder(); for(int i = 0; i < this.size(); ++i) { sb.append(i + ":[" + this.get(i) + "]"); for(int j = this.get(i); j < vs.length(); ++j) { sb.append(" " + vs.charAt(j)); } sb.append("\n"); } return sb.toString(); } }