Submission #1841862

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Source Code Expand

#include <iostream>
#include <cstdio>
#include <vector>
using namespace std;

typedef long long ll;
ll n, m, t1[2005],t2[2005],t3[2005], d[1005];
int main()
{
	ll i,j, z;
	cin >> n >> m;
	for (i = 0; i < m; i++) {
		scanf ("%lld %lld %lld", &t1[i], &t2[i], &t3[i]);
		t3[i] *= -1;
	}
	for (i = 2; i <= n; i++) d[i] = 9e15;
	for (i = 1; i <= n * 2; i++) {
		z = 0;
		for (j = 0; j < m; j++) {
			if (d[t2[j]] > d[t1[j]] + t3[j]) {
				z = 1;
				d[t2[j]] = d[t1[j]] + t3[j];
			}
		}
		if (!z) break;
	}
	if (z) cout << "inf";
	else cout << -d[n];
    return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:13:51: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf ("%lld %lld %lld", &t1[i], &t2[i], &t3[i]);
                                                   ^

Judge Result