結果
| 問題 |
No.259 セグメントフィッシング＋
|
| コンテスト | |
| ユーザー |
 tanzaku
|
| 提出日時 | 2015-07-31 23:48:27 |
| 言語 | Java (openjdk 23) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 7,406 bytes |
| コンパイル時間 | 2,741 ms |
| コンパイル使用メモリ | 91,676 KB |
| 実行使用メモリ | 68,192 KB |
| 最終ジャッジ日時 | 2024-07-18 00:02:23 |
| 合計ジャッジ時間 | 15,773 ms |
|
ジャッジサーバーID （参考情報） |
judge2 / judge4 |
（要ログイン）
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 4 WA * 19 |
ソースコード
import java.io.*;
import java.math.*;
import java.util.*;
import static java.util.Arrays.*;
public class Main {
private static final int mod = (int)1e9+7;
final Random random = new Random(0);
final IOFast io = new IOFast();
/// MAIN CODE
public void run() throws IOException {
// int TEST_CASE = Integer.parseInt(new String(io.nextLine()).trim());
int TEST_CASE = 1;
while(TEST_CASE-- != 0) {
n = io.nextInt();
int q = io.nextInt();
bit = new BIT[]{new BIT(n), new BIT(n)};
for(int i = 0; i < q; i++) {
char x = io.nextChar();
int t = io.nextInt();
int y = io.nextInt();
int z = io.nextInt();
if(x == 'C') {
long ans = 0;
ans += cnt(pos(1, t, y), pos(1, t, z - 1));
ans += cnt(pos(0, t, z - 1), pos(0, t, y));
io.out.println(ans);
}
else {
int p = pos(x == 'L' ? 0 : 1, t, y);
int d = p%2;
p /= 2;
bit[d].add(p + 1, z);
// System.err.println(p);
}
}
}
}
int n;
BIT[] bit;
long cnt(int p1, int p2) {
int d1 = p1%2;
int d2 = p2%2;
p1 /= 2;
p2 /= 2;
int l, r;
System.err.println(p1 + " " + p2 + " " + d1 + " " + d2);
if(d1 == d2) {
if(d1 == 1 && p1 > p2 || d1 == 0 && p1 < p2) {
// return bit[d1].sum(n);
throw new RuntimeException();
}
else {
l = Math.min(p1, p2);
r = Math.max(p1, p2);
return bit[d1].sum(l, r + 1);
}
}
else {
long ans = 0;
if(d1 == 1) {
l = Math.min(p1, p2);
r = n - 1;
ans += bit[d1].sum(p1, n);
ans += bit[d2].sum(p2, n);
}
else {
l = 0;
r = Math.max(p1, p2);
ans += bit[d1].sum(0, p1);
ans += bit[d2].sum(0, p2);
}
return ans;
}
// System.err.println(p1 + " " + p2 + " " + d1 + " " + d2 + " " + l + " " + r + " " + bit.sum(l, r + 1));
// return bit.sum(l, r + 1);
}
int pos(int d, int t, int x) {
int p = t % (2 * n);
if(d == 0) {
x += p;
}
else {
x -= p;
}
while(true) {
if(x < 0) { d = 0; x = -x - 1; }
else if(x >= n) { d = 1; x = n - 1 - (x - n); }
else break;
}
// System.err.println("pos: " + d + " " + t + " " + x);
return x * 2 + d;
}
static
class BIT {
final int n;
final long[] bit;
public BIT(int size) {
n = size;
bit = new long[n + 1];
}
// [i, j)
public long sum(int i, int j) {
return sum(j) - sum(i);
}
public long sum(int i) {
long res = 0;
for (; i > 0; i -= i & -i) {
res += bit[i];
// while(res >= mod) res -= mod;
}
return res;
}
// 1<=i<=n
public void add(int i, long x) {
if(i == 0) throw new RuntimeException();
for (; i <= n; i += i & -i) {
bit[i] += x;
// while(bit[i] >= mod) bit[i] -= mod;
}
}
}
/// TEMPLATE
static int gcd(int n, int r) { return r == 0 ? n : gcd(r, n%r); }
static long gcd(long n, long r) { return r == 0 ? n : gcd(r, n%r); }
static <T> void swap(T[] x, int i, int j) { T t = x[i]; x[i] = x[j]; x[j] = t; }
static void swap(int[] x, int i, int j) { int t = x[i]; x[i] = x[j]; x[j] = t; }
void main() throws IOException {
// IOFast.setFileIO("rle-size.in", "rle-size.out");
try { run(); }
catch (EndOfFileRuntimeException e) { }
io.out.flush();
}
public static void main(String[] args) throws IOException { new Main().main(); }
static class EndOfFileRuntimeException extends RuntimeException {
private static final long serialVersionUID = -8565341110209207657L; }
static
public class IOFast {
private BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
private PrintWriter out = new PrintWriter(System.out);
void setFileIn(String ins) throws IOException { in.close(); in = new BufferedReader(new FileReader(ins)); }
void setFileOut(String outs) throws IOException { out.flush(); out.close(); out = new PrintWriter(new FileWriter(outs)); }
void setFileIO(String ins, String outs) throws IOException { setFileIn(ins); setFileOut(outs); }
private static int pos, readLen;
private static final char[] buffer = new char[1024 * 8];
private static char[] str = new char[500*8*2];
private static boolean[] isDigit = new boolean[256];
private static boolean[] isSpace = new boolean[256];
private static boolean[] isLineSep = new boolean[256];
static { for(int i = 0; i < 10; i++) { isDigit['0' + i] = true; } isDigit['-'] = true; isSpace[' '] = isSpace['\r'] = isSpace['\n'] = isSpace['\t'] = true; isLineSep['\r'] = isLineSep['\n'] = true; }
public int read() throws IOException { if(pos >= readLen) { pos = 0; readLen = in.read(buffer); if(readLen <= 0) { throw new EndOfFileRuntimeException(); } } return buffer[pos++]; }
public int nextInt() throws IOException { int len = 0; str[len++] = nextChar(); len = reads(len, isSpace); int i = 0; int ret = 0; if(str[0] == '-') { i = 1; } for(; i < len; i++) ret = ret * 10 + str[i] - '0'; if(str[0] == '-') { ret = -ret; } return ret; }
public long nextLong() throws IOException { int len = 0; str[len++] = nextChar(); len = reads(len, isSpace); int i = 0; long ret = 0; if(str[0] == '-') { i = 1; } for(; i < len; i++) ret = ret * 10 + str[i] - '0'; if(str[0] == '-') { ret = -ret; } return ret; }
public char nextChar() throws IOException { while(true) { final int c = read(); if(!isSpace[c]) { return (char)c; } } }
int reads(int len, boolean[] accept) throws IOException { try { while(true) { final int c = read(); if(accept[c]) { break; } if(str.length == len) { char[] rep = new char[str.length * 3 / 2]; System.arraycopy(str, 0, rep, 0, str.length); str = rep; } str[len++] = (char)c; } } catch(EndOfFileRuntimeException e) { ; } return len; }
int reads(char[] cs, int len, boolean[] accept) throws IOException { try { while(true) { final int c = read(); if(accept[c]) { break; } cs[len++] = (char)c; } } catch(EndOfFileRuntimeException e) { ; } return len; }
public char[] nextLine() throws IOException { int len = 0; str[len++] = nextChar(); len = reads(len, isLineSep); try { if(str[len-1] == '\r') { len--; read(); } } catch(EndOfFileRuntimeException e) { ; } return Arrays.copyOf(str, len); }
public String nextString() throws IOException { return new String(next()); }
public char[] next() throws IOException { int len = 0; str[len++] = nextChar(); len = reads(len, isSpace); return Arrays.copyOf(str, len); }
public int next(char[] cs) throws IOException { int len = 0; cs[len++] = nextChar(); len = reads(cs, len, isSpace); return len; }
public double nextDouble() throws IOException { return Double.parseDouble(nextString()); }
public long[] nextLongArray(final int n) throws IOException { final long[] res = new long[n]; for(int i = 0; i < n; i++) { res[i] = nextLong(); } return res; }
public int[] nextIntArray(final int n) throws IOException { final int[] res = new int[n]; for(int i = 0; i < n; i++) { res[i] = nextInt(); } return res; }
public int[][] nextIntArray2D(final int n, final int k) throws IOException { final int[][] res = new int[n][]; for(int i = 0; i < n; i++) { res[i] = nextIntArray(k); } return res; }
public int[][] nextIntArray2DWithIndex(final int n, final int k) throws IOException { final int[][] res = new int[n][k+1]; for(int i = 0; i < n; i++) { for(int j = 0; j < k; j++) { res[i][j] = nextInt(); } res[i][k] = i; } return res; }
public double[] nextDoubleArray(final int n) throws IOException { final double[] res = new double[n]; for(int i = 0; i < n; i++) { res[i] = nextDouble(); } return res; }
}
}