Submission #24891

#	Time	Username	Problem	Language	Result	Execution time	Memory
24891		dotorya	스파이 (JOI13_spy)	C++14	100 / 100	239 ms	18704 KiB

spy

#include <stdio.h>  
#include <algorithm>  
#include <assert.h>
#include <bitset>
#include <cmath>  
#include <complex>  
#include <deque>  
#include <functional>  
#include <iostream>  
#include <limits.h>  
#include <map>  
#include <math.h>  
#include <queue>  
#include <set>  
#include <stdlib.h>  
#include <string.h>  
#include <string>  
#include <time.h>  
#include <unordered_map>  
#include <unordered_set>  
#include <vector>  

#pragma warning(disable:4996)  
#pragma comment(linker, "/STACK:336777216")  
using namespace std;

#define mp make_pair  
#define Fi first  
#define Se second  
#define pb(x) push_back(x)  
#define szz(x) ((int)(x).size())  
#define rep(i, n) for(int i=0;i<n;i++)  
#define all(x) (x).begin(), (x).end()  
#define ldb ldouble  

typedef tuple<int, int, int> t3;
typedef long long ll;
typedef unsigned long long ull;
typedef double db;
typedef long double ldb;
typedef pair <int, int> pii;
typedef pair <ll, ll> pll;
typedef pair <ll, int> pli;
typedef pair <db, db> pdd;

int IT_MAX = 1 << 13;
const ll MOD = 1000000007;
const int INF = 0x3f3f3f3f;
const ll LL_INF = 0x3f3f3f3f3f3f3f3f;
const db PI = acos(-1);
const db ERR = 1E-11;

vector <int> son[2][2050];
bool dchk[2][2050];
int lr[2][2050][2];
int tus[2];
void DFS(int x, int n) {
	dchk[x][n] = true;
	lr[x][n][0] = ++tus[x];
	for (auto it : son[x][n]) {
		if (dchk[x][it]) continue;
		DFS(x, it);
	}
	lr[x][n][1] = tus[x];
}

int del[2050][2050];
int main() {
	int N, M, i, j, t1, t2;
	scanf("%d %d", &N, &M);

	int R[2] = { 0,0 };
	for (i = 1; i <= N; i++) {
		for (j = 0; j < 2; j++) {
			scanf("%d", &t1);
			if (t1 == 0) R[j] = i;
			else son[j][t1].push_back(i);
		}
	}
	for (i = 0; i < 2; i++) DFS(i, R[i]);

	while (M--) {
		int t1, t2;
		scanf("%d %d", &t1, &t2);

		del[lr[0][t1][0]][lr[1][t2][0]]++;
		del[lr[0][t1][0]][lr[1][t2][1] + 1]--;
		del[lr[0][t1][1] + 1][lr[1][t2][0]]--;
		del[lr[0][t1][1] + 1][lr[1][t2][1] + 1]++;
	}
	for (i = 1; i <= N; i++) for (j = 1; j <= N; j++) del[i][j] += del[i - 1][j] + del[i][j - 1] - del[i - 1][j - 1];

	for (i = 1; i <= N; i++) printf("%d\n", del[lr[0][i][0]][lr[1][i][0]]);
	return 0;
}

Compilation message (stderr)

spy.cpp:23:0: warning: ignoring #pragma warning  [-Wunknown-pragmas]
 #pragma warning(disable:4996)  
 ^
spy.cpp:24:0: warning: ignoring #pragma comment  [-Wunknown-pragmas]
 #pragma comment(linker, "/STACK:336777216")  
 ^
spy.cpp: In function 'int main()':
spy.cpp:69:22: warning: unused variable 't2' [-Wunused-variable]
  int N, M, i, j, t1, t2;
                      ^
spy.cpp:70:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d", &N, &M);
                        ^
spy.cpp:75:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    scanf("%d", &t1);
                    ^
spy.cpp:84:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d", &t1, &t2);
                           ^

• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 70 / 70