#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 << 51));
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;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
467 ms |
1308 KB |
Output is correct |
| 2 |
Correct |
42 ms |
512 KB |
Output is correct |
| 3 |
Correct |
43 ms |
504 KB |
Output is correct |
| 4 |
Correct |
11 ms |
384 KB |
Output is correct |
| 5 |
Correct |
8 ms |
384 KB |
Output is correct |
| 6 |
Correct |
11 ms |
384 KB |
Output is correct |
| 7 |
Correct |
14 ms |
384 KB |
Output is correct |
| 8 |
Correct |
2 ms |
384 KB |
Output is correct |
| 9 |
Correct |
8 ms |
384 KB |
Output is correct |
| 10 |
Correct |
10 ms |
384 KB |
Output is correct |
| 11 |
Correct |
9 ms |
384 KB |
Output is correct |
| 12 |
Correct |
2 ms |
384 KB |
Output is correct |
| 13 |
Correct |
17 ms |
384 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
13 ms |
384 KB |
Output is correct |
| 2 |
Correct |
73 ms |
384 KB |
Output is correct |
| 3 |
Correct |
13 ms |
432 KB |
Output is correct |
| 4 |
Correct |
14 ms |
384 KB |
Output is correct |
| 5 |
Correct |
20 ms |
384 KB |
Output is correct |
| 6 |
Correct |
2 ms |
256 KB |
Output is correct |
| 7 |
Correct |
9 ms |
384 KB |
Output is correct |
| 8 |
Correct |
12 ms |
384 KB |
Output is correct |
| 9 |
Correct |
9 ms |
384 KB |
Output is correct |
| 10 |
Correct |
12 ms |
384 KB |
Output is correct |
| 11 |
Correct |
34 ms |
384 KB |
Output is correct |
| 12 |
Correct |
16 ms |
384 KB |
Output is correct |
| 13 |
Correct |
11 ms |
384 KB |
Output is correct |
| 14 |
Correct |
17 ms |
384 KB |
Output is correct |
| 15 |
Correct |
22 ms |
384 KB |
Output is correct |
| 16 |
Correct |
8 ms |
384 KB |
Output is correct |
| 17 |
Correct |
19 ms |
384 KB |
Output is correct |
| 18 |
Correct |
2 ms |
256 KB |
Output is correct |
| 19 |
Correct |
23 ms |
384 KB |
Output is correct |
| 20 |
Correct |
20 ms |
384 KB |
Output is correct |
| 21 |
Correct |
17 ms |
384 KB |
Output is correct |
| 22 |
Correct |
9 ms |
384 KB |
Output is correct |
| 23 |
Correct |
8 ms |
384 KB |
Output is correct |
| 24 |
Correct |
11 ms |
384 KB |
Output is correct |
| 25 |
Correct |
14 ms |
384 KB |
Output is correct |
| 26 |
Correct |
2 ms |
384 KB |
Output is correct |
| 27 |
Correct |
8 ms |
384 KB |
Output is correct |
| 28 |
Correct |
10 ms |
384 KB |
Output is correct |
| 29 |
Correct |
9 ms |
384 KB |
Output is correct |
| 30 |
Correct |
2 ms |
384 KB |
Output is correct |
| 31 |
Correct |
17 ms |
384 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
125 ms |
512 KB |
Output is correct |
| 2 |
Correct |
924 ms |
1208 KB |
Output is correct |
| 3 |
Correct |
69 ms |
512 KB |
Output is correct |
| 4 |
Correct |
137 ms |
572 KB |
Output is correct |
| 5 |
Correct |
123 ms |
632 KB |
Output is correct |
| 6 |
Correct |
76 ms |
512 KB |
Output is correct |
| 7 |
Correct |
19 ms |
384 KB |
Output is correct |
| 8 |
Correct |
2 ms |
256 KB |
Output is correct |
| 9 |
Correct |
23 ms |
384 KB |
Output is correct |
| 10 |
Correct |
20 ms |
384 KB |
Output is correct |
| 11 |
Correct |
17 ms |
384 KB |
Output is correct |
| 12 |
Correct |
9 ms |
384 KB |
Output is correct |
| 13 |
Correct |
8 ms |
384 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
13 ms |
384 KB |
Output is correct |
| 2 |
Correct |
73 ms |
384 KB |
Output is correct |
| 3 |
Correct |
13 ms |
432 KB |
Output is correct |
| 4 |
Correct |
14 ms |
384 KB |
Output is correct |
| 5 |
Correct |
20 ms |
384 KB |
Output is correct |
| 6 |
Correct |
2 ms |
256 KB |
Output is correct |
| 7 |
Correct |
9 ms |
384 KB |
Output is correct |
| 8 |
Correct |
12 ms |
384 KB |
Output is correct |
| 9 |
Correct |
9 ms |
384 KB |
Output is correct |
| 10 |
Correct |
12 ms |
384 KB |
Output is correct |
| 11 |
Correct |
34 ms |
384 KB |
Output is correct |
| 12 |
Correct |
16 ms |
384 KB |
Output is correct |
| 13 |
Correct |
11 ms |
384 KB |
Output is correct |
| 14 |
Correct |
17 ms |
384 KB |
Output is correct |
| 15 |
Correct |
22 ms |
384 KB |
Output is correct |
| 16 |
Correct |
8 ms |
384 KB |
Output is correct |
| 17 |
Correct |
125 ms |
512 KB |
Output is correct |
| 18 |
Correct |
924 ms |
1208 KB |
Output is correct |
| 19 |
Correct |
69 ms |
512 KB |
Output is correct |
| 20 |
Correct |
137 ms |
572 KB |
Output is correct |
| 21 |
Correct |
123 ms |
632 KB |
Output is correct |
| 22 |
Correct |
76 ms |
512 KB |
Output is correct |
| 23 |
Correct |
19 ms |
384 KB |
Output is correct |
| 24 |
Correct |
2 ms |
256 KB |
Output is correct |
| 25 |
Correct |
23 ms |
384 KB |
Output is correct |
| 26 |
Correct |
20 ms |
384 KB |
Output is correct |
| 27 |
Correct |
17 ms |
384 KB |
Output is correct |
| 28 |
Correct |
9 ms |
384 KB |
Output is correct |
| 29 |
Correct |
8 ms |
384 KB |
Output is correct |
| 30 |
Correct |
55 ms |
512 KB |
Output is correct |
| 31 |
Correct |
92 ms |
640 KB |
Output is correct |
| 32 |
Correct |
339 ms |
1592 KB |
Output is correct |
| 33 |
Correct |
80 ms |
632 KB |
Output is correct |
| 34 |
Correct |
77 ms |
760 KB |
Output is correct |
| 35 |
Correct |
69 ms |
640 KB |
Output is correct |
| 36 |
Correct |
907 ms |
3212 KB |
Output is correct |
| 37 |
Correct |
2 ms |
256 KB |
Output is correct |
| 38 |
Correct |
2 ms |
256 KB |
Output is correct |
| 39 |
Correct |
53 ms |
512 KB |
Output is correct |
| 40 |
Correct |
53 ms |
512 KB |
Output is correct |
| 41 |
Correct |
80 ms |
512 KB |
Output is correct |
| 42 |
Correct |
51 ms |
512 KB |
Output is correct |
| 43 |
Correct |
46 ms |
760 KB |
Output is correct |
| 44 |
Correct |
2 ms |
256 KB |
Output is correct |
| 45 |
Correct |
29 ms |
512 KB |
Output is correct |
| 46 |
Correct |
24 ms |
512 KB |
Output is correct |
| 47 |
Correct |
20 ms |
512 KB |
Output is correct |
| 48 |
Correct |
954 ms |
3324 KB |
Output is correct |
| 49 |
Correct |
949 ms |
3320 KB |
Output is correct |
| 50 |
Correct |
3 ms |
256 KB |
Output is correct |
| 51 |
Correct |
467 ms |
1308 KB |
Output is correct |
| 52 |
Correct |
42 ms |
512 KB |
Output is correct |
| 53 |
Correct |
43 ms |
504 KB |
Output is correct |
| 54 |
Correct |
11 ms |
384 KB |
Output is correct |
| 55 |
Correct |
8 ms |
384 KB |
Output is correct |
| 56 |
Correct |
11 ms |
384 KB |
Output is correct |
| 57 |
Correct |
14 ms |
384 KB |
Output is correct |
| 58 |
Correct |
2 ms |
384 KB |
Output is correct |
| 59 |
Correct |
8 ms |
384 KB |
Output is correct |
| 60 |
Correct |
10 ms |
384 KB |
Output is correct |
| 61 |
Correct |
9 ms |
384 KB |
Output is correct |
| 62 |
Correct |
2 ms |
384 KB |
Output is correct |
| 63 |
Correct |
17 ms |
384 KB |
Output is correct |
