結果
| 問題 | No.3369 Find MyakuMyaku |
| コンテスト | |
| ユーザー |
 uwi
|
| 提出日時 | 2026-03-12 11:28:43 |
| 言語 | Java (openjdk 25.0.2) |
| 結果 |
AC
|
| 実行時間 | 372 ms / 2,000 ms |
| コード長 | 18,082 bytes |
| 記録 | |
| コンパイル時間 | 4,134 ms |
| コンパイル使用メモリ | 99,720 KB |
| 実行使用メモリ | 85,728 KB |
| 最終ジャッジ日時 | 2026-03-12 11:28:59 |
| 合計ジャッジ時間 | 14,930 ms |
|
ジャッジサーバーID （参考情報） |
judge3_1 / judge1_1 |
（要ログイン）
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 4 |
| other | AC * 40 |
ソースコード
package no3xxx;
import java.io.*;
import java.util.*;
import java.util.function.IntUnaryOperator;
import java.util.function.LongUnaryOperator;
// 1102
public class N3369 {
InputStream is;
FastWriter out;
String INPUT = "";
public void solve()
{
int n = ni(), H = ni(), W = ni();
int[][] rs = nmi(n, 4);
int[] hs = new int[2*n+1];
for(int i = 0;i < n;i++){
hs[2*i] = rs[i][0];
hs[2*i+1] = rs[i][1]+1;
}
int[] ws = new int[2*n+1];
for(int i = 0;i < n;i++){
ws[2*i] = rs[i][2];
ws[2*i+1] = rs[i][3]+1;
}
Arrays.sort(hs);
hs = uniq(hs);
Arrays.sort(ws);
ws = uniq(ws);
for(int i = 0;i < n;i++){
rs[i][0] = Arrays.binarySearch(hs, rs[i][0]);
rs[i][1] = Arrays.binarySearch(hs, rs[i][1]+1);
rs[i][2] = Arrays.binarySearch(ws, rs[i][2]);
rs[i][3] = Arrays.binarySearch(ws, rs[i][3]+1);
}
int u = hs.length, v = ws.length;
// int[][] imos = new int[u][v+1];
// for(int[] r : rs){
// for(int i = 0;i < u;i++){
// if(r[0] <= hs[i] && hs[i] < r[1]+1){
// imos[i][Arrays.binarySearch(ws, r[2])]++;
// imos[i][Arrays.binarySearch(ws, r[3]+1)]--;
// }
// }
// }
// for(int i = 0;i < u;i++){
// for(int j = 0;j < v;j++){
// imos[i][j+1] += imos[i][j];
// }
// }
// DJSet ds = new DJSet(u*v);
// for(int i = 0;i < u;i++){
// for(int j = 0;j < v;j++){
// if(i+1 < u && imos[i][j] == 0 && imos[i+1][j] == 0){
// ds.unite(i*v+j, (i+1)*v+j);
// }
// if(j+1 < v && imos[i][j] == 0 && imos[i][j+1] == 0){
// ds.unite(i*v+j, i*v+(j+1));
// }
// }
// }
LST[] lsts = new LST[u];
for(int i = 0;i < u;i++){
lsts[i] = new LST(v+1);
lsts[i].setRange(v+1);
}
int[][] firsts = new int[u][v];
for(int i = 0;i < u;i++){
Arrays.fill(firsts[i], -1);
}
Deque<int[]> dq = new ArrayDeque<>();
for(int i = 0;i < n;i++){
int[] r = rs[i];
for(int j = r[0];j < r[1];j++){
while(true){
int ne = lsts[j].next(r[2]);
if(ne != -1 && ne < r[3]){
lsts[j].unset(ne);
firsts[j][ne] = i;
dq.add(new int[]{j, ne});
}else{
break;
}
}
}
}
DJSet ds = new DJSet(u*v);
for(int i = 0;i < u;i++){
for(int j = 0;j < v;j++){
if(i+1 < u && firsts[i][j] == -1 && firsts[i+1][j] == -1){
ds.unite(i*v+j, (i+1)*v+j);
}
if(j+1 < v && firsts[i][j] == -1 && firsts[i][j+1] == -1){
ds.unite(i*v+j, i*v+(j+1));
}
}
}
boolean[] white = new boolean[u*v];
for(int i = 0;i < u;i++){
for(int j = 0;j < v;j++){
white[i*v+j] = firsts[i][j] == -1;
}
}
int nw = 0;
for(int i = 0;i < u*v;i++){
if(ds.upper[i] < 0 && white[i]){
nw++;
}
}
Deque<String> ans = new ArrayDeque<>();
for(int i = n-1;i >= 0;i--){
if(nw == 1){
ans.addFirst("No");
}else{
ans.addFirst("Yes");
}
while(!dq.isEmpty()){
int[] w = dq.peekLast();
if(firsts[w[0]][w[1]] == i){
dq.pollLast();
int r = w[0], c = w[1];
white[r*v+c] = true;
nw++;
for(int k = 0;k < 4;k++){
int nr = r + dr[k], nc = c + dc[k];
if(nr >= 0 && nr < u && nc >= 0 && nc < v) {
if (white[nr * v + nc]) {
if (!ds.equiv(r * v + c, nr * v + nc)) {
ds.unite(r * v + c, nr * v + nc);
nw--;
}
}
}
}
}else{
break;
}
}
}
for(String line : ans){
out.println(line);
}
}
static int[] dr = {-1,0,0,1};
static int[] dc = {0,-1,1,0};
public static class LST {
public long[][] set;
public int n;
// public int size;
public LST(int n) {
this.n = n;
int d = 1;
for(int m = n;m > 1;m>>>=6, d++);
set = new long[d][];
for(int i = 0, m = n>>>6;i < d;i++, m>>>=6){
set[i] = new long[m+1];
}
// size = 0;
}
// [0,r)
public LST setRange(int r)
{
for(int i = 0;i < set.length;i++, r=r+63>>>6){
for(int j = 0;j < r>>>6;j++){
set[i][j] = -1L;
}
if((r&63) != 0)set[i][r>>>6] |= (1L<<r)-1;
}
return this;
}
// [0,r)
public LST unsetRange(int r)
{
if(r >= 0){
for(int i = 0;i < set.length;i++, r=r+63>>>6){
for(int j = 0;j < r+63>>>6;j++){
set[i][j] = 0;
}
if((r&63) != 0)set[i][r>>>6] &= -(1L << r);
}
}
return this;
}
public LST set(int pos)
{
if(pos >= 0 && pos < n){
// if(!get(pos))size++;
for(int i = 0;i < set.length;i++, pos>>>=6){
set[i][pos>>>6] |= 1L<<pos;
}
}
return this;
}
public LST unset(int pos)
{
if(pos >= 0 && pos < n){
// if(get(pos))size--;
for(int i = 0;i < set.length && (i == 0 || set[i-1][pos] == 0L);i++, pos>>>=6){
set[i][pos>>>6] &= ~(1L<<pos);
}
}
return this;
}
public boolean get(int pos)
{
return pos >= 0 && pos < n && set[0][pos>>>6]<<~pos<0;
}
public LST toggle(int pos)
{
return get(pos) ? unset(pos) : set(pos);
}
public int prev(int pos)
{
for(int i = 0;i < set.length && pos >= 0;i++, pos>>>=6, pos--){
int pre = prev(set[i][pos>>>6], pos&63);
if(pre != -1){
pos = pos>>>6<<6|pre;
while(i > 0)pos = pos<<6|63-Long.numberOfLeadingZeros(set[--i][pos]);
return pos;
}
}
return -1;
}
public int next(int pos)
{
for(int i = 0;i < set.length && pos>>>6 < set[i].length;i++, pos>>>=6, pos++){
int nex = next(set[i][pos>>>6], pos&63);
if(nex != -1){
pos = pos>>>6<<6|nex;
while(i > 0)pos = pos<<6|Long.numberOfTrailingZeros(set[--i][pos]);
return pos;
}
}
return -1;
}
private static int prev(long set, int n)
{
long h = set<<~n;
if(h == 0L)return -1;
return -Long.numberOfLeadingZeros(h)+n;
}
private static int next(long set, int n)
{
long h = set>>>n;
if(h == 0L)return -1;
return Long.numberOfTrailingZeros(h)+n;
}
@Override
public String toString()
{
List<Integer> list = new ArrayList<>();
for(int pos = next(0);pos != -1;pos = next(pos+1)){
list.add(pos);
}
return list.toString();
}
}
public class DJSet { public int[] upper; public DJSet(int n){ upper = new int[n]; Arrays.fill(upper, -1);} public int root(int x){ return upper[x] < 0 ? x : (upper[x] = root(upper[x]));} public boolean equiv(int x, int y){ return root(x) == root(y);} public boolean unite(int x, int y){ x = root(x);y = root(y);if(x != y) { if(upper[y] < upper[x]) { int d = x; x = y; y = d; } upper[x] += upper[y]; upper[y] = x;} return x == y;} public int count(){ int ct = 0; for(int u : upper)if(u < 0)ct++; return ct; } public int[][] toBucket(){int n = upper.length; int[][] ret = new int[n][]; int[] rp = new int[n]; for(int i = 0; i < n; i++)if(upper[i] < 0)ret[i] = new int[-upper[i]];for(int i = 0; i < n; i++){int r = root(i);ret[r][rp[r]++] = i;}return ret;}}
public static int[] uniq(int[] a)
{
if(a.length == 0)return a;
int p = 1;
for(int i = 1;i < a.length;i++) {
if(a[i] != a[i-1])a[p++] = a[i];
}
return Arrays.copyOf(a, p);
}
public static void main(String[] args) {
new N3369().run();
}
public void run()
{
long S = System.currentTimeMillis();
is = INPUT.isEmpty() ? System.in : new ByteArrayInputStream(INPUT.getBytes());
out = new FastWriter(System.out);
solve();
out.flush();
long G = System.currentTimeMillis();
tr(G-S+"ms");
// Thread t = new Thread(null, null, "~", Runtime.getRuntime().maxMemory()){
// @Override
// public void run() {
// long s = System.currentTimeMillis();
// solve();
// out.flush();
// if(!INPUT.isEmpty())tr(System.currentTimeMillis()-s+"ms");
// }
// };
// t.start();
// t.join();
}
private boolean eof()
{
if(lenbuf == -1)return true;
int lptr = ptrbuf;
while(lptr < lenbuf)if(!isSpaceChar(inbuf[lptr++]))return false;
try {
is.mark(1000);
while(true){
int b = is.read();
if(b == -1){
is.reset();
return true;
}else if(!isSpaceChar(b)){
is.reset();
return false;
}
}
} catch (IOException e) {
return true;
}
}
private final byte[] inbuf = new byte[1024];
public int lenbuf = 0, ptrbuf = 0;
private int readByte()
{
if(lenbuf == -1)throw new InputMismatchException();
if(ptrbuf >= lenbuf){
ptrbuf = 0;
try { lenbuf = is.read(inbuf); } catch (IOException e) { throw new InputMismatchException(); }
if(lenbuf <= 0)return -1;
}
return inbuf[ptrbuf++];
}
private boolean isSpaceChar(int c) { return !(c >= 33 && c <= 126); }
// private boolean isSpaceChar(int c) { return !(c >= 32 && c <= 126); }
private int skip() { int b; while((b = readByte()) != -1 && isSpaceChar(b)); return b; }
private double nd() { return Double.parseDouble(ns()); }
private char nc() { return (char)skip(); }
private String ns()
{
int b = skip();
StringBuilder sb = new StringBuilder();
while(!(isSpaceChar(b))){
sb.appendCodePoint(b);
b = readByte();
}
return sb.toString();
}
private char[] ns(int n)
{
char[] buf = new char[n];
int b = skip(), p = 0;
while(p < n && !(isSpaceChar(b))){
buf[p++] = (char)b;
b = readByte();
}
return n == p ? buf : Arrays.copyOf(buf, p);
}
private char[][] nm(int n, int m)
{
char[][] map = new char[n][];
for(int i = 0;i < n;i++)map[i] = ns(m);
return map;
}
private int[][] nmi(int n, int m)
{
int[][] map = new int[n][];
for(int i = 0;i < n;i++)map[i] = na(m);
return map;
}
private int[] na(int n)
{
int[] a = new int[n];
for(int i = 0;i < n;i++)a[i] = ni();
return a;
}
private long[] nal(int n)
{
long[] a = new long[n];
for(int i = 0;i < n;i++)a[i] = nl();
return a;
}
private int ni()
{
int num = 0, b;
boolean minus = false;
while((b = readByte()) != -1 && !((b >= '0' && b <= '9') || b == '-'));
if(b == '-'){
minus = true;
b = readByte();
}
while(true){
if(b >= '0' && b <= '9'){
num = num * 10 + (b - '0');
}else{
return minus ? -num : num;
}
b = readByte();
}
}
private long nl()
{
long num = 0;
int b;
boolean minus = false;
while((b = readByte()) != -1 && !((b >= '0' && b <= '9') || b == '-'));
if(b == '-'){
minus = true;
b = readByte();
}
while(true){
if(b >= '0' && b <= '9'){
num = num * 10 + (b - '0');
}else{
return minus ? -num : num;
}
b = readByte();
}
}
public static class FastWriter
{
private static final int BUF_SIZE = 1<<13;
private final byte[] buf = new byte[BUF_SIZE];
private final OutputStream out;
private int ptr = 0;
private FastWriter(){out = null;}
public FastWriter(OutputStream os)
{
this.out = os;
}
public FastWriter(String path)
{
try {
this.out = new FileOutputStream(path);
} catch (FileNotFoundException e) {
throw new RuntimeException("FastWriter");
}
}
public FastWriter write(byte b)
{
buf[ptr++] = b;
if(ptr == BUF_SIZE)innerflush();
return this;
}
public FastWriter write(char c)
{
return write((byte)c);
}
public FastWriter write(char[] s)
{
for(char c : s){
buf[ptr++] = (byte)c;
if(ptr == BUF_SIZE)innerflush();
}
return this;
}
public FastWriter write(String s)
{
s.chars().forEach(c -> {
buf[ptr++] = (byte)c;
if(ptr == BUF_SIZE)innerflush();
});
return this;
}
private static int countDigits(int l) {
if (l >= 1000000000) return 10;
if (l >= 100000000) return 9;
if (l >= 10000000) return 8;
if (l >= 1000000) return 7;
if (l >= 100000) return 6;
if (l >= 10000) return 5;
if (l >= 1000) return 4;
if (l >= 100) return 3;
if (l >= 10) return 2;
return 1;
}
public FastWriter write(int x)
{
if(x == Integer.MIN_VALUE){
return write((long)x);
}
if(ptr + 12 >= BUF_SIZE)innerflush();
if(x < 0){
write((byte)'-');
x = -x;
}
int d = countDigits(x);
for(int i = ptr + d - 1;i >= ptr;i--){
buf[i] = (byte)('0'+x%10);
x /= 10;
}
ptr += d;
return this;
}
private static int countDigits(long l) {
if (l >= 1000000000000000000L) return 19;
if (l >= 100000000000000000L) return 18;
if (l >= 10000000000000000L) return 17;
if (l >= 1000000000000000L) return 16;
if (l >= 100000000000000L) return 15;
if (l >= 10000000000000L) return 14;
if (l >= 1000000000000L) return 13;
if (l >= 100000000000L) return 12;
if (l >= 10000000000L) return 11;
if (l >= 1000000000L) return 10;
if (l >= 100000000L) return 9;
if (l >= 10000000L) return 8;
if (l >= 1000000L) return 7;
if (l >= 100000L) return 6;
if (l >= 10000L) return 5;
if (l >= 1000L) return 4;
if (l >= 100L) return 3;
if (l >= 10L) return 2;
return 1;
}
public FastWriter write(long x)
{
if(x == Long.MIN_VALUE){
return write("" + x);
}
if(ptr + 21 >= BUF_SIZE)innerflush();
if(x < 0){
write((byte)'-');
x = -x;
}
int d = countDigits(x);
for(int i = ptr + d - 1;i >= ptr;i--){
buf[i] = (byte)('0'+x%10);
x /= 10;
}
ptr += d;
return this;
}
public FastWriter write(double x, int precision)
{
if(x < 0){
write('-');
x = -x;
}
x += Math.pow(10, -precision)/2;
// if(x < 0){ x = 0; }
write((long)x).write(".");
x -= (long)x;
for(int i = 0;i < precision;i++){
x *= 10;
write((char)('0'+(int)x));
x -= (int)x;
}
return this;
}
public FastWriter writeln(char c){ return write(c).writeln(); }
public FastWriter writeln(int x){ return write(x).writeln(); }
public FastWriter writeln(long x){ return write(x).writeln(); }
public FastWriter writeln(double x, int precision){ return write(x, precision).writeln(); }
public FastWriter write(int... xs)
{
boolean first = true;
for(int x : xs) {
if (!first) write(' ');
first = false;
write(x);
}
return this;
}
public FastWriter write(long... xs)
{
boolean first = true;
for(long x : xs) {
if (!first) write(' ');
first = false;
write(x);
}
return this;
}
public FastWriter write(IntUnaryOperator f, int... xs)
{
boolean first = true;
for(int x : xs) {
if (!first) write(' ');
first = false;
write(f.applyAsInt(x));
}
return this;
}
public FastWriter write(LongUnaryOperator f, long... xs)
{
boolean first = true;
for(long x : xs) {
if (!first) write(' ');
first = false;
write(f.applyAsLong(x));
}
return this;
}
public FastWriter writeln()
{
return write((byte)'\n');
}
public FastWriter writeln(int... xs) { return write(xs).writeln(); }
public FastWriter writeln(long... xs) { return write(xs).writeln(); }
public FastWriter writeln(IntUnaryOperator f, int... xs) { return write(f, xs).writeln(); }
public FastWriter writeln(LongUnaryOperator f, long... xs) { return write(f, xs).writeln(); }
public FastWriter writeln(char[] line) { return write(line).writeln(); }
public FastWriter writeln(char[]... map) { for(char[] line : map)write(line).writeln();return this; }
public FastWriter writeln(String s) { return write(s).writeln(); }
private void innerflush()
{
try {
out.write(buf, 0, ptr);
ptr = 0;
} catch (IOException e) {
throw new RuntimeException("innerflush");
}
}
public void flush()
{
innerflush();
try {
out.flush();
} catch (IOException e) {
throw new RuntimeException("flush");
}
}
public FastWriter print(byte b) { return write(b); }
public FastWriter print(char c) { return write(c); }
public FastWriter print(char[] s) { return write(s); }
public FastWriter print(String s) { return write(s); }
public FastWriter print(int x) { return write(x); }
public FastWriter print(long x) { return write(x); }
public FastWriter print(double x, int precision) { return write(x, precision); }
public FastWriter println(char c){ return writeln(c); }
public FastWriter println(int x){ return writeln(x); }
public FastWriter println(long x){ return writeln(x); }
public FastWriter println(double x, int precision){ return writeln(x, precision); }
public FastWriter print(int... xs) { return write(xs); }
public FastWriter print(long... xs) { return write(xs); }
public FastWriter print(IntUnaryOperator f, int... xs) { return write(f, xs); }
public FastWriter print(LongUnaryOperator f, long... xs) { return write(f, xs); }
public FastWriter println(int... xs) { return writeln(xs); }
public FastWriter println(long... xs) { return writeln(xs); }
public FastWriter println(IntUnaryOperator f, int... xs) { return writeln(f, xs); }
public FastWriter println(LongUnaryOperator f, long... xs) { return writeln(f, xs); }
public FastWriter println(char[] line) { return writeln(line); }
public FastWriter println(char[]... map) { return writeln(map); }
public FastWriter println(String s) { return writeln(s); }
public FastWriter println() { return writeln(); }
}
public static void trnz(int... o)
{
for(int i = 0;i < o.length;i++)if(o[i] != 0)System.out.print(i+":"+o[i]+" ");
System.out.println();
}
// print ids which are 1
public static void trt(long... o)
{
Queue<Integer> stands = new ArrayDeque<>();
for(int i = 0;i < o.length;i++){
for(long x = o[i];x != 0;x &= x-1)stands.add(i<<6|Long.numberOfTrailingZeros(x));
}
System.out.println(stands);
}
public static void tf(boolean... r)
{
for(boolean x : r)System.out.print(x?'#':'.');
System.out.println();
}
public static void tf(boolean[]... b)
{
for(boolean[] r : b) {
for(boolean x : r)System.out.print(x?'#':'.');
System.out.println();
}
System.out.println();
}
public void tf(long[]... b)
{
if(INPUT.length() != 0) {
for (long[] r : b) {
for (long x : r) {
for (int i = 0; i < 64; i++) {
System.out.print(x << ~i < 0 ? '#' : '.');
}
}
System.out.println();
}
System.out.println();
}
}
public void tf(long... b)
{
if(INPUT.length() != 0) {
for (long x : b) {
for (int i = 0; i < 64; i++) {
System.out.print(x << ~i < 0 ? '#' : '.');
}
}
System.out.println();
}
}
private void tr(Object... o) { if(INPUT.length() != 0)System.out.println(Arrays.deepToString(o)); }
}