#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;
const int inf = 1012345678;
int main() {
int N, M, K;
cin >> N >> M >> K;
vector<vector<int> > B(N, vector<int>(K)), S(N, vector<int>(K));
for(int i = 0; i < N; ++i) {
for(int j = 0; j < K; ++j) {
cin >> B[i][j] >> S[i][j];
}
}
vector<vector<int> > D(N, vector<int>(N, inf));
for(int i = 0; i < N; ++i) D[i][i] = 0;
for(int i = 0; i < M; ++i) {
int V, W, T;
cin >> V >> W >> T; --V, --W;
D[V][W] = T;
}
for(int i = 0; i < N; ++i) {
for(int j = 0; j < N; ++j) {
for(int k = 0; k < N; ++k) {
D[j][k] = min(D[j][k], D[j][i] + D[i][k]);
}
}
}
long long L = 0, R = inf;
while(R - L > 1) {
long long M = (L + R) / 2;
vector<vector<long long> > C(N, vector<long long>(N, 1LL << 62));
for(int i = 0; i < N; ++i) {
for(int j = 0; j < N; ++j) {
if(D[i][j] == inf) continue;
C[i][j] = (long long)(D[i][j]) * M;
for(int k = 0; k < K; ++k) {
if(S[j][k] != -1 && B[i][k] != -1) {
C[i][j] = min(C[i][j], (long long)(D[i][j]) * M - (S[j][k] - B[i][k]));
}
}
}
}
for(int i = 0; i < N; ++i) {
for(int j = 0; j < N; ++j) {
for(int k = 0; k < N; ++k) {
C[j][k] = min(C[j][k], C[j][i] + C[i][k]);
}
}
}
bool ok = true;
for(int i = 0; i < N; ++i) {
if(C[i][i] < 0) ok = false;
for(int j = 0; j < N; ++j) {
if(i != j && C[i][j] + C[j][i] <= 0) ok = false;
}
}
if(ok) R = M;
else L = M;
}
cout << int(L) << endl;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
408 ms |
1400 KB |
Output is correct |
2 |
Correct |
39 ms |
504 KB |
Output is correct |
3 |
Correct |
38 ms |
512 KB |
Output is correct |
4 |
Correct |
8 ms |
384 KB |
Output is correct |
5 |
Correct |
10 ms |
384 KB |
Output is correct |
6 |
Correct |
9 ms |
384 KB |
Output is correct |
7 |
Correct |
18 ms |
384 KB |
Output is correct |
8 |
Correct |
2 ms |
384 KB |
Output is correct |
9 |
Correct |
9 ms |
384 KB |
Output is correct |
10 |
Correct |
9 ms |
384 KB |
Output is correct |
11 |
Correct |
10 ms |
384 KB |
Output is correct |
12 |
Correct |
3 ms |
384 KB |
Output is correct |
13 |
Incorrect |
11 ms |
384 KB |
Output isn't correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
10 ms |
384 KB |
Output is correct |
2 |
Correct |
8 ms |
384 KB |
Output is correct |
3 |
Correct |
13 ms |
384 KB |
Output is correct |
4 |
Correct |
14 ms |
512 KB |
Output is correct |
5 |
Correct |
20 ms |
384 KB |
Output is correct |
6 |
Correct |
2 ms |
256 KB |
Output is correct |
7 |
Incorrect |
8 ms |
512 KB |
Output isn't correct |
8 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
131 ms |
568 KB |
Output is correct |
2 |
Correct |
852 ms |
1196 KB |
Output is correct |
3 |
Correct |
76 ms |
640 KB |
Output is correct |
4 |
Correct |
133 ms |
780 KB |
Output is correct |
5 |
Correct |
125 ms |
888 KB |
Output is correct |
6 |
Correct |
75 ms |
640 KB |
Output is correct |
7 |
Correct |
20 ms |
384 KB |
Output is correct |
8 |
Correct |
2 ms |
256 KB |
Output is correct |
9 |
Correct |
18 ms |
384 KB |
Output is correct |
10 |
Correct |
18 ms |
384 KB |
Output is correct |
11 |
Incorrect |
16 ms |
384 KB |
Output isn't correct |
12 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
10 ms |
384 KB |
Output is correct |
2 |
Correct |
8 ms |
384 KB |
Output is correct |
3 |
Correct |
13 ms |
384 KB |
Output is correct |
4 |
Correct |
14 ms |
512 KB |
Output is correct |
5 |
Correct |
20 ms |
384 KB |
Output is correct |
6 |
Correct |
2 ms |
256 KB |
Output is correct |
7 |
Incorrect |
8 ms |
512 KB |
Output isn't correct |
8 |
Halted |
0 ms |
0 KB |
- |