Submission #1370734

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Source Code Expand

#include <bits/stdc++.h>  

using namespace std;

#define FOR(i, j, k) for(int i = j; i < k; ++i)
#define rep(i, j) FOR(i, 0, j)
#define FORr(i, j, k) for(int i = j; i >= k; --i)
#define repr(i, j) FOR(i, j, 0)
#define INF (1 << 30)
const int MOD = 1e9 + 7;

typedef long long ll;
typedef unsigned long long ull;
typedef pair<int, int> P;
typedef pair<P, int> Pi;

vector<int> f[12];

int main() {
	int N, M;
	scanf("%d %d", &N, &M);
	rep(i, M) {
		int a, b;
		scanf("%d %d", &a, &b);
		--a; --b;
		f[a].push_back(b);
		f[b].push_back(a);
	}
	int res = 1;
	rep(i, N) {
		rep(j, f[i].size()) {
			int cnt = 2;
			rep(k, f[f[i][j]].size()) {
				rep(l, f[i].size()) {
					if(f[i][l] == f[f[i][j]][k]) {
						++cnt;
						break;
					}
				}
			}
			res = max(res, cnt);
		}
	}
	printf("%d\n", res);
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:21:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d", &N, &M);
                        ^
./Main.cpp:24:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d", &a, &b);
                         ^

Judge Result