Submission #1155419


Source Code Expand

#include<bits/stdc++.h>
using namespace std;
#define rep(i,a,b) for(int i=a;i<b;i++)



typedef long long ll;
int N, M;
int A[90101], B[90101];
//-----------------------------------------------------------------
int E[301][301];
vector<int> cand[301];
int cnt[301][301];
void pre() {
	rep(i, 0, M) E[A[i]][B[i]] = 1;

	rep(i, 0, M) cand[A[i]].push_back(B[i]);

	rep(a, 1, N + 1) rep(b, a, N + 1) rep(c, 1, N + 1) {
		if (E[a][c] && E[b][c]) {
			cnt[a][b]++;
		}
	}
}
//-----------------------------------------------------------------
int main() {
	cin >> N >> M;
	rep(i, 0, M) scanf("%d%d", &A[i], &B[i]);

	pre();
	
	ll ans = 0;
	rep(i, 0, M) {
		for (int a : cand[A[i]]) {
			int b = B[i];
			if (a > b) swap(a, b);
			ans += cnt[a][b];
		}
	}
	cout << ans << endl;
}

Submission Info

Submission Time
Task C - クロスワード
User hamayanhamayan
Language C++14 (GCC 5.4.1)
Score 100
Code Size 811 Byte
Status AC
Exec Time 133 ms
Memory 2304 KB

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:28:42: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  rep(i, 0, M) scanf("%d%d", &A[i], &B[i]);
                                          ^

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 100 / 100
Status
AC × 2
AC × 16
Set Name Test Cases
Sample sample_01.txt, sample_02.txt
All sample_01.txt, sample_02.txt, 01.txt, 02.txt, 03.txt, 04.txt, 05.txt, 06.txt, 07.txt, 08.txt, 09.txt, 10.txt, 11.txt, 12.txt, sample_01.txt, sample_02.txt
Case Name Status Exec Time Memory
01.txt AC 1 ms 256 KB
02.txt AC 1 ms 256 KB
03.txt AC 2 ms 384 KB
04.txt AC 133 ms 2304 KB
05.txt AC 132 ms 2304 KB
06.txt AC 14 ms 1024 KB
07.txt AC 11 ms 640 KB
08.txt AC 71 ms 1408 KB
09.txt AC 54 ms 1280 KB
10.txt AC 112 ms 1664 KB
11.txt AC 120 ms 1920 KB
12.txt AC 116 ms 1792 KB
sample_01.txt AC 1 ms 256 KB
sample_02.txt AC 1 ms 256 KB