#include <bits/stdc++.h>
using namespace std;
#define ll long long
const int mxN=100, mxK=1000;
int n, m, k, b[mxN][mxK], s[mxN][mxK], a[mxN][mxN];
ll d1[mxN][mxN], d2[mxN][mxN];
void fw(ll d[mxN][mxN]) {
for(int k=0; k<n; ++k)
for(int i=0; i<n; ++i)
for(int j=0; j<n; ++j)
d[i][j]=min(d[i][k]+d[k][j], d[i][j]);
}
int main() {
ios_base::sync_with_stdio(0);
cin.tie(0);
cin >> n >> m >> k;
for(int i=0; i<n; ++i)
for(int j=0; j<k; ++j)
cin >> b[i][j] >> s[i][j];
for(int i=0; i<n; ++i)
for(int j=0; j<n; ++j)
for(int l=0; l<k; ++l)
if(b[i][l]!=-1&&s[j][l]!=-1)
a[i][j]=max(s[j][l]-b[i][l], a[i][j]);
// for(int i=0; i<n; ++i) {
// for(int j=0; j<n; ++j)
// cout << a[i][j] << " ";
// cout << endl;
// }
memset(d1, 0x3F, sizeof(d1));
while(m--) {
int v, w, t;
cin >> v >> w >> t, --v, --w;
d1[v][w]=t;
}
fw(d1);
ll lb=1, rb=1e9;
while(lb<=rb) {
ll mb=(lb+rb)/2;
for(int i=0; i<n; ++i)
for(int j=0; j<n; ++j)
d2[i][j]=mb*min(d1[i][j], LLONG_MAX/2/mb)-a[i][j];
fw(d2);
bool ok=0;
for(int i=0; i<n&&!ok; ++i)
ok=d2[i][i]<=0;
if(ok)
lb=mb+1;
else
rb=mb-1;
}
cout << rb;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
80 ms |
1400 KB |
Output is correct |
| 2 |
Correct |
60 ms |
1408 KB |
Output is correct |
| 3 |
Correct |
46 ms |
1440 KB |
Output is correct |
| 4 |
Correct |
8 ms |
1440 KB |
Output is correct |
| 5 |
Correct |
9 ms |
1440 KB |
Output is correct |
| 6 |
Correct |
9 ms |
1440 KB |
Output is correct |
| 7 |
Correct |
9 ms |
1440 KB |
Output is correct |
| 8 |
Correct |
3 ms |
1440 KB |
Output is correct |
| 9 |
Correct |
8 ms |
1440 KB |
Output is correct |
| 10 |
Correct |
8 ms |
1440 KB |
Output is correct |
| 11 |
Correct |
8 ms |
1440 KB |
Output is correct |
| 12 |
Correct |
2 ms |
1440 KB |
Output is correct |
| 13 |
Correct |
10 ms |
1440 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
9 ms |
1440 KB |
Output is correct |
| 2 |
Correct |
9 ms |
1440 KB |
Output is correct |
| 3 |
Correct |
9 ms |
1440 KB |
Output is correct |
| 4 |
Correct |
9 ms |
1440 KB |
Output is correct |
| 5 |
Correct |
10 ms |
1440 KB |
Output is correct |
| 6 |
Correct |
3 ms |
1440 KB |
Output is correct |
| 7 |
Correct |
10 ms |
1440 KB |
Output is correct |
| 8 |
Correct |
12 ms |
1440 KB |
Output is correct |
| 9 |
Correct |
8 ms |
1440 KB |
Output is correct |
| 10 |
Correct |
8 ms |
1440 KB |
Output is correct |
| 11 |
Correct |
9 ms |
1440 KB |
Output is correct |
| 12 |
Correct |
12 ms |
1440 KB |
Output is correct |
| 13 |
Correct |
9 ms |
1520 KB |
Output is correct |
| 14 |
Correct |
9 ms |
1540 KB |
Output is correct |
| 15 |
Correct |
10 ms |
1560 KB |
Output is correct |
| 16 |
Correct |
8 ms |
1560 KB |
Output is correct |
| 17 |
Correct |
10 ms |
1560 KB |
Output is correct |
| 18 |
Correct |
2 ms |
1560 KB |
Output is correct |
| 19 |
Correct |
29 ms |
1560 KB |
Output is correct |
| 20 |
Correct |
9 ms |
1560 KB |
Output is correct |
| 21 |
Correct |
9 ms |
1560 KB |
Output is correct |
| 22 |
Correct |
10 ms |
1560 KB |
Output is correct |
| 23 |
Correct |
8 ms |
1628 KB |
Output is correct |
| 24 |
Correct |
9 ms |
1440 KB |
Output is correct |
| 25 |
Correct |
9 ms |
1440 KB |
Output is correct |
| 26 |
Correct |
3 ms |
1440 KB |
Output is correct |
| 27 |
Correct |
8 ms |
1440 KB |
Output is correct |
| 28 |
Correct |
8 ms |
1440 KB |
Output is correct |
| 29 |
Correct |
8 ms |
1440 KB |
Output is correct |
| 30 |
Correct |
2 ms |
1440 KB |
Output is correct |
| 31 |
Correct |
10 ms |
1440 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
48 ms |
1984 KB |
Output is correct |
| 2 |
Correct |
101 ms |
2084 KB |
Output is correct |
| 3 |
Correct |
45 ms |
2112 KB |
Output is correct |
| 4 |
Correct |
50 ms |
2112 KB |
Output is correct |
| 5 |
Correct |
48 ms |
2148 KB |
Output is correct |
| 6 |
Correct |
44 ms |
2148 KB |
Output is correct |
| 7 |
Correct |
10 ms |
1560 KB |
Output is correct |
| 8 |
Correct |
2 ms |
1560 KB |
Output is correct |
| 9 |
Correct |
29 ms |
1560 KB |
Output is correct |
| 10 |
Correct |
9 ms |
1560 KB |
Output is correct |
| 11 |
Correct |
9 ms |
1560 KB |
Output is correct |
| 12 |
Correct |
10 ms |
1560 KB |
Output is correct |
| 13 |
Correct |
8 ms |
1628 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
9 ms |
1440 KB |
Output is correct |
| 2 |
Correct |
9 ms |
1440 KB |
Output is correct |
| 3 |
Correct |
9 ms |
1440 KB |
Output is correct |
| 4 |
Correct |
9 ms |
1440 KB |
Output is correct |
| 5 |
Correct |
10 ms |
1440 KB |
Output is correct |
| 6 |
Correct |
3 ms |
1440 KB |
Output is correct |
| 7 |
Correct |
10 ms |
1440 KB |
Output is correct |
| 8 |
Correct |
12 ms |
1440 KB |
Output is correct |
| 9 |
Correct |
8 ms |
1440 KB |
Output is correct |
| 10 |
Correct |
8 ms |
1440 KB |
Output is correct |
| 11 |
Correct |
9 ms |
1440 KB |
Output is correct |
| 12 |
Correct |
12 ms |
1440 KB |
Output is correct |
| 13 |
Correct |
9 ms |
1520 KB |
Output is correct |
| 14 |
Correct |
9 ms |
1540 KB |
Output is correct |
| 15 |
Correct |
10 ms |
1560 KB |
Output is correct |
| 16 |
Correct |
8 ms |
1560 KB |
Output is correct |
| 17 |
Correct |
48 ms |
1984 KB |
Output is correct |
| 18 |
Correct |
101 ms |
2084 KB |
Output is correct |
| 19 |
Correct |
45 ms |
2112 KB |
Output is correct |
| 20 |
Correct |
50 ms |
2112 KB |
Output is correct |
| 21 |
Correct |
48 ms |
2148 KB |
Output is correct |
| 22 |
Correct |
44 ms |
2148 KB |
Output is correct |
| 23 |
Correct |
10 ms |
1560 KB |
Output is correct |
| 24 |
Correct |
2 ms |
1560 KB |
Output is correct |
| 25 |
Correct |
29 ms |
1560 KB |
Output is correct |
| 26 |
Correct |
9 ms |
1560 KB |
Output is correct |
| 27 |
Correct |
9 ms |
1560 KB |
Output is correct |
| 28 |
Correct |
10 ms |
1560 KB |
Output is correct |
| 29 |
Correct |
8 ms |
1628 KB |
Output is correct |
| 30 |
Correct |
43 ms |
2148 KB |
Output is correct |
| 31 |
Correct |
50 ms |
2148 KB |
Output is correct |
| 32 |
Correct |
91 ms |
2588 KB |
Output is correct |
| 33 |
Correct |
48 ms |
2728 KB |
Output is correct |
| 34 |
Correct |
70 ms |
2764 KB |
Output is correct |
| 35 |
Correct |
47 ms |
2876 KB |
Output is correct |
| 36 |
Correct |
112 ms |
4832 KB |
Output is correct |
| 37 |
Correct |
3 ms |
4832 KB |
Output is correct |
| 38 |
Correct |
3 ms |
4832 KB |
Output is correct |
| 39 |
Correct |
44 ms |
4832 KB |
Output is correct |
| 40 |
Correct |
47 ms |
4880 KB |
Output is correct |
| 41 |
Correct |
49 ms |
5004 KB |
Output is correct |
| 42 |
Correct |
44 ms |
5004 KB |
Output is correct |
| 43 |
Correct |
46 ms |
5064 KB |
Output is correct |
| 44 |
Correct |
2 ms |
5064 KB |
Output is correct |
| 45 |
Correct |
11 ms |
5064 KB |
Output is correct |
| 46 |
Correct |
10 ms |
5064 KB |
Output is correct |
| 47 |
Correct |
11 ms |
5064 KB |
Output is correct |
| 48 |
Correct |
125 ms |
7304 KB |
Output is correct |
| 49 |
Correct |
112 ms |
9500 KB |
Output is correct |
| 50 |
Correct |
3 ms |
9500 KB |
Output is correct |
| 51 |
Correct |
80 ms |
1400 KB |
Output is correct |
| 52 |
Correct |
60 ms |
1408 KB |
Output is correct |
| 53 |
Correct |
46 ms |
1440 KB |
Output is correct |
| 54 |
Correct |
8 ms |
1440 KB |
Output is correct |
| 55 |
Correct |
9 ms |
1440 KB |
Output is correct |
| 56 |
Correct |
9 ms |
1440 KB |
Output is correct |
| 57 |
Correct |
9 ms |
1440 KB |
Output is correct |
| 58 |
Correct |
3 ms |
1440 KB |
Output is correct |
| 59 |
Correct |
8 ms |
1440 KB |
Output is correct |
| 60 |
Correct |
8 ms |
1440 KB |
Output is correct |
| 61 |
Correct |
8 ms |
1440 KB |
Output is correct |
| 62 |
Correct |
2 ms |
1440 KB |
Output is correct |
| 63 |
Correct |
10 ms |
1440 KB |
Output is correct |
