Submission #1149825

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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 repr(i, j) for(int i = j; i >= 0; -i)
#define INF (1 << 30)
#define MOD 1e9 + 7
 
typedef long long ll;
typedef unsigned long long ull;
typedef pair<int, int> P;

int N, M;
ll d[301][301];

void Warshall_Floyd() {
	FOR(k, 2, N + 1) FOR(i, 2, N + 1) FOR(j, 2, N + 1) {
		d[i][j] = min(d[i][j], d[i][k] + d[k][j]);
	}
	return;
}

int main() {
	scanf("%d %d", &N, &M);
	rep(i, N + 1) rep(j, N + 1) d[i][j] = INF;
	rep(i, M) {
		int u, v, l;
		scanf("%d %d %d", &u, &v, &l);
		d[u][v] = d[v][u] = l;
	}
	Warshall_Floyd();
	ll ans = INF;
	FOR(i, 2, N + 1) {
		FOR(j, i + 1, N + 1) {
			ans = min(ans, d[i][j] + d[1][i] + d[j][1]);
		}
	}
	printf("%d\n", (ans == INF) ? -1 : ans);
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:40:40: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘long long int’ [-Wformat=]
  printf("%d\n", (ans == INF) ? -1 : ans);
                                        ^
./Main.cpp:26:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d", &N, &M);
                        ^
./Main.cpp:30:32: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d %d", &u, &v, &l);
                                ^

Judge Result