#include <bits/stdc++.h>
using namespace std;
using ll = long long;
int P[505][505];
int32_t main() {
int n, m, K;
cin >> n >> m >> K;
vector<vector<ll> > M(n+1, vector<ll>(n+1, 1e16));
int B[n+1][K], S[n+1][K];
for(int i=1; i<=n; i++)
for(int j=0; j<K; j++) cin >> B[i][j] >> S[i][j];
for(int i=0; i<m; i++) {
int a, b, c;
cin >> a >> b >> c;
M[a][b] = min(M[a][b], 1ll * c);
}
for(int k=1; k<=n; k++)
for(int i=1; i<=n; i++)
for(int j=1; j<=n; j++) M[i][j] = min(M[i][j], M[i][k] + M[k][j]);
for(int i=1; i<=n; i++)
for(int j=1; j<=n; j++)
for(int k=0; k<K; k++)
if(S[j][k] != -1 && B[i][k] != -1) P[i][j] = max(P[i][j], S[j][k] - B[i][k]);
ll l=1, r=1e9, ans=0;
while(l <= r) {
ll mid = (l + r) / 2;
vector<vector<ll> > M2(n+1, vector<ll>(n+1, 1e16));
for(int i=1; i<=n; i++)
for(int j=1; j<=n; j++) if(M[i][j] < 1e16) M2[i][j] = mid * M[i][j] - P[i][j];
for(int k=1; k<=n; k++)
for(int i=1; i<=n; i++)
for(int j=1; j<=n; j++) M2[i][j] = min(M2[i][j], M2[i][k] + M2[k][j]);
bool ok = 0;
for(int i=1; i<=n; i++)
if(M2[i][i] <= 0) ok = 1;
if(ok) ans = mid, l = mid + 1;
else r = mid - 1;
}
cout << ans << '\n';
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
81 ms |
1364 KB |
Output is correct |
2 |
Correct |
26 ms |
604 KB |
Output is correct |
3 |
Correct |
27 ms |
348 KB |
Output is correct |
4 |
Correct |
3 ms |
348 KB |
Output is correct |
5 |
Correct |
4 ms |
484 KB |
Output is correct |
6 |
Correct |
3 ms |
344 KB |
Output is correct |
7 |
Correct |
5 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
4 ms |
348 KB |
Output is correct |
10 |
Correct |
4 ms |
348 KB |
Output is correct |
11 |
Correct |
4 ms |
348 KB |
Output is correct |
12 |
Correct |
1 ms |
600 KB |
Output is correct |
13 |
Correct |
5 ms |
344 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
344 KB |
Output is correct |
2 |
Correct |
5 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
4 ms |
348 KB |
Output is correct |
5 |
Correct |
4 ms |
348 KB |
Output is correct |
6 |
Correct |
4 ms |
348 KB |
Output is correct |
7 |
Correct |
1 ms |
600 KB |
Output is correct |
8 |
Correct |
5 ms |
344 KB |
Output is correct |
9 |
Correct |
5 ms |
348 KB |
Output is correct |
10 |
Correct |
4 ms |
348 KB |
Output is correct |
11 |
Correct |
5 ms |
604 KB |
Output is correct |
12 |
Correct |
4 ms |
600 KB |
Output is correct |
13 |
Correct |
7 ms |
604 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
4 ms |
548 KB |
Output is correct |
16 |
Correct |
4 ms |
604 KB |
Output is correct |
17 |
Correct |
4 ms |
348 KB |
Output is correct |
18 |
Correct |
4 ms |
348 KB |
Output is correct |
19 |
Correct |
5 ms |
604 KB |
Output is correct |
20 |
Correct |
5 ms |
604 KB |
Output is correct |
21 |
Correct |
4 ms |
348 KB |
Output is correct |
22 |
Correct |
4 ms |
616 KB |
Output is correct |
23 |
Correct |
8 ms |
604 KB |
Output is correct |
24 |
Correct |
4 ms |
348 KB |
Output is correct |
25 |
Correct |
5 ms |
604 KB |
Output is correct |
26 |
Correct |
0 ms |
348 KB |
Output is correct |
27 |
Correct |
6 ms |
604 KB |
Output is correct |
28 |
Correct |
5 ms |
536 KB |
Output is correct |
29 |
Correct |
5 ms |
604 KB |
Output is correct |
30 |
Correct |
5 ms |
604 KB |
Output is correct |
31 |
Correct |
4 ms |
348 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
5 ms |
604 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
6 ms |
604 KB |
Output is correct |
4 |
Correct |
5 ms |
536 KB |
Output is correct |
5 |
Correct |
5 ms |
604 KB |
Output is correct |
6 |
Correct |
5 ms |
604 KB |
Output is correct |
7 |
Correct |
4 ms |
348 KB |
Output is correct |
8 |
Correct |
33 ms |
860 KB |
Output is correct |
9 |
Correct |
95 ms |
1616 KB |
Output is correct |
10 |
Correct |
30 ms |
860 KB |
Output is correct |
11 |
Correct |
35 ms |
856 KB |
Output is correct |
12 |
Correct |
35 ms |
964 KB |
Output is correct |
13 |
Correct |
31 ms |
860 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
5 ms |
348 KB |
Output is correct |
2 |
Correct |
4 ms |
348 KB |
Output is correct |
3 |
Correct |
5 ms |
604 KB |
Output is correct |
4 |
Correct |
4 ms |
600 KB |
Output is correct |
5 |
Correct |
7 ms |
604 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
4 ms |
548 KB |
Output is correct |
8 |
Correct |
4 ms |
604 KB |
Output is correct |
9 |
Correct |
4 ms |
348 KB |
Output is correct |
10 |
Correct |
4 ms |
348 KB |
Output is correct |
11 |
Correct |
5 ms |
604 KB |
Output is correct |
12 |
Correct |
5 ms |
604 KB |
Output is correct |
13 |
Correct |
4 ms |
348 KB |
Output is correct |
14 |
Correct |
4 ms |
616 KB |
Output is correct |
15 |
Correct |
8 ms |
604 KB |
Output is correct |
16 |
Correct |
4 ms |
348 KB |
Output is correct |
17 |
Correct |
33 ms |
860 KB |
Output is correct |
18 |
Correct |
95 ms |
1616 KB |
Output is correct |
19 |
Correct |
30 ms |
860 KB |
Output is correct |
20 |
Correct |
35 ms |
856 KB |
Output is correct |
21 |
Correct |
35 ms |
964 KB |
Output is correct |
22 |
Correct |
31 ms |
860 KB |
Output is correct |
23 |
Correct |
5 ms |
604 KB |
Output is correct |
24 |
Correct |
0 ms |
348 KB |
Output is correct |
25 |
Correct |
6 ms |
604 KB |
Output is correct |
26 |
Correct |
5 ms |
536 KB |
Output is correct |
27 |
Correct |
5 ms |
604 KB |
Output is correct |
28 |
Correct |
5 ms |
604 KB |
Output is correct |
29 |
Correct |
4 ms |
348 KB |
Output is correct |
30 |
Correct |
81 ms |
1364 KB |
Output is correct |
31 |
Correct |
26 ms |
604 KB |
Output is correct |
32 |
Correct |
27 ms |
348 KB |
Output is correct |
33 |
Correct |
3 ms |
348 KB |
Output is correct |
34 |
Correct |
4 ms |
484 KB |
Output is correct |
35 |
Correct |
3 ms |
344 KB |
Output is correct |
36 |
Correct |
5 ms |
348 KB |
Output is correct |
37 |
Correct |
0 ms |
348 KB |
Output is correct |
38 |
Correct |
4 ms |
348 KB |
Output is correct |
39 |
Correct |
4 ms |
348 KB |
Output is correct |
40 |
Correct |
4 ms |
348 KB |
Output is correct |
41 |
Correct |
1 ms |
600 KB |
Output is correct |
42 |
Correct |
5 ms |
344 KB |
Output is correct |
43 |
Correct |
28 ms |
740 KB |
Output is correct |
44 |
Correct |
31 ms |
860 KB |
Output is correct |
45 |
Correct |
55 ms |
1896 KB |
Output is correct |
46 |
Correct |
39 ms |
860 KB |
Output is correct |
47 |
Correct |
31 ms |
860 KB |
Output is correct |
48 |
Correct |
31 ms |
860 KB |
Output is correct |
49 |
Correct |
104 ms |
3412 KB |
Output is correct |
50 |
Correct |
1 ms |
348 KB |
Output is correct |
51 |
Correct |
0 ms |
348 KB |
Output is correct |
52 |
Correct |
28 ms |
692 KB |
Output is correct |
53 |
Correct |
32 ms |
604 KB |
Output is correct |
54 |
Correct |
28 ms |
604 KB |
Output is correct |
55 |
Correct |
28 ms |
600 KB |
Output is correct |
56 |
Correct |
28 ms |
600 KB |
Output is correct |
57 |
Correct |
1 ms |
348 KB |
Output is correct |
58 |
Correct |
7 ms |
604 KB |
Output is correct |
59 |
Correct |
7 ms |
708 KB |
Output is correct |
60 |
Correct |
9 ms |
860 KB |
Output is correct |
61 |
Correct |
105 ms |
3460 KB |
Output is correct |
62 |
Correct |
104 ms |
3576 KB |
Output is correct |
63 |
Correct |
0 ms |
348 KB |
Output is correct |