#include <iostream>
#include <cstdio>
#include <algorithm>
#include <string.h>
using namespace std;
#define endl '\n'
#define ll long long
#define pi pair<ll, ll>
#define f first
#define s second
const ll inf = 0x3f3f3f3f;
const int mxn = 100, mxk = 1000;
int n, m, k;
ll a[mxn][mxk][2];
pi g[mxn][mxn];
ll g2[mxn][mxn];
bool sol(ll x){
for(int i = 0; i < n; i++)
for(int j = 0; j < n; j++){
g2[i][j] = g[i][j].f - x * g[i][j].s;
}
for(int l = 0; l < n; l++)
for(int i = 0; i < n; i++)
for(int j = 0; j < n; j++){
g2[i][j] = max(g2[i][j], g2[i][l] + g2[l][j]);
}
for(int i = 0; i < n; i++) if(g2[i][i] >= 0) return 1;
return 0;
}
int main(){
ios::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++)
for(int l = 0; l < 2; l++){
cin >> a[i][j][l];
}
for(int i = 0; i < n; i++)
for(int j = 0; j < n; j++){
g[i][j] = {0, inf};
for(int l = 0; l < k; l++){
if(~a[i][l][0] && ~a[j][l][1]) g[i][j].f = max(g[i][j].f, a[j][l][1] - a[i][l][0]);
}
}
for(int i = 0; i < m; i++){
ll u, v, w;
cin >> u >> v >> w;
u--, v--;
g[u][v].s = min(g[u][v].s, w);
}
for(int l = 0; l < n; l++)
for(int i = 0; i < n; i++)
for(int j = 0; j < n; j++){
g[i][j].s = min(g[i][j].s, g[i][l].s + g[l][j].s);
}
int l = 0, r = inf;
while(r - l > 1){
int mid = (l + r) / 2;
if(sol(mid)) l = mid;
else r = mid;
}
cout << l << endl;
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
65 ms |
2168 KB |
Output is correct |
2 |
Correct |
51 ms |
1024 KB |
Output is correct |
3 |
Correct |
37 ms |
1024 KB |
Output is correct |
4 |
Correct |
6 ms |
640 KB |
Output is correct |
5 |
Correct |
10 ms |
640 KB |
Output is correct |
6 |
Correct |
5 ms |
640 KB |
Output is correct |
7 |
Correct |
7 ms |
640 KB |
Output is correct |
8 |
Correct |
1 ms |
384 KB |
Output is correct |
9 |
Correct |
8 ms |
640 KB |
Output is correct |
10 |
Correct |
5 ms |
640 KB |
Output is correct |
11 |
Correct |
6 ms |
640 KB |
Output is correct |
12 |
Correct |
1 ms |
384 KB |
Output is correct |
13 |
Correct |
6 ms |
640 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
6 ms |
640 KB |
Output is correct |
2 |
Correct |
5 ms |
640 KB |
Output is correct |
3 |
Correct |
6 ms |
640 KB |
Output is correct |
4 |
Correct |
8 ms |
640 KB |
Output is correct |
5 |
Correct |
7 ms |
640 KB |
Output is correct |
6 |
Correct |
0 ms |
384 KB |
Output is correct |
7 |
Correct |
7 ms |
640 KB |
Output is correct |
8 |
Correct |
6 ms |
640 KB |
Output is correct |
9 |
Correct |
6 ms |
640 KB |
Output is correct |
10 |
Correct |
11 ms |
640 KB |
Output is correct |
11 |
Correct |
6 ms |
640 KB |
Output is correct |
12 |
Correct |
7 ms |
768 KB |
Output is correct |
13 |
Correct |
10 ms |
640 KB |
Output is correct |
14 |
Correct |
6 ms |
640 KB |
Output is correct |
15 |
Correct |
7 ms |
640 KB |
Output is correct |
16 |
Correct |
6 ms |
640 KB |
Output is correct |
17 |
Correct |
7 ms |
640 KB |
Output is correct |
18 |
Correct |
1 ms |
384 KB |
Output is correct |
19 |
Correct |
7 ms |
640 KB |
Output is correct |
20 |
Correct |
6 ms |
640 KB |
Output is correct |
21 |
Correct |
6 ms |
640 KB |
Output is correct |
22 |
Correct |
6 ms |
640 KB |
Output is correct |
23 |
Correct |
5 ms |
640 KB |
Output is correct |
24 |
Correct |
5 ms |
640 KB |
Output is correct |
25 |
Correct |
7 ms |
640 KB |
Output is correct |
26 |
Correct |
1 ms |
384 KB |
Output is correct |
27 |
Correct |
8 ms |
640 KB |
Output is correct |
28 |
Correct |
5 ms |
640 KB |
Output is correct |
29 |
Correct |
6 ms |
640 KB |
Output is correct |
30 |
Correct |
1 ms |
384 KB |
Output is correct |
31 |
Correct |
6 ms |
640 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
43 ms |
1152 KB |
Output is correct |
2 |
Correct |
94 ms |
2220 KB |
Output is correct |
3 |
Correct |
40 ms |
1024 KB |
Output is correct |
4 |
Correct |
43 ms |
1152 KB |
Output is correct |
5 |
Correct |
43 ms |
1152 KB |
Output is correct |
6 |
Correct |
39 ms |
1024 KB |
Output is correct |
7 |
Correct |
7 ms |
640 KB |
Output is correct |
8 |
Correct |
1 ms |
384 KB |
Output is correct |
9 |
Correct |
7 ms |
640 KB |
Output is correct |
10 |
Correct |
6 ms |
640 KB |
Output is correct |
11 |
Correct |
6 ms |
640 KB |
Output is correct |
12 |
Correct |
6 ms |
640 KB |
Output is correct |
13 |
Correct |
5 ms |
640 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
6 ms |
640 KB |
Output is correct |
2 |
Correct |
5 ms |
640 KB |
Output is correct |
3 |
Correct |
6 ms |
640 KB |
Output is correct |
4 |
Correct |
8 ms |
640 KB |
Output is correct |
5 |
Correct |
7 ms |
640 KB |
Output is correct |
6 |
Correct |
0 ms |
384 KB |
Output is correct |
7 |
Correct |
7 ms |
640 KB |
Output is correct |
8 |
Correct |
6 ms |
640 KB |
Output is correct |
9 |
Correct |
6 ms |
640 KB |
Output is correct |
10 |
Correct |
11 ms |
640 KB |
Output is correct |
11 |
Correct |
6 ms |
640 KB |
Output is correct |
12 |
Correct |
7 ms |
768 KB |
Output is correct |
13 |
Correct |
10 ms |
640 KB |
Output is correct |
14 |
Correct |
6 ms |
640 KB |
Output is correct |
15 |
Correct |
7 ms |
640 KB |
Output is correct |
16 |
Correct |
6 ms |
640 KB |
Output is correct |
17 |
Correct |
43 ms |
1152 KB |
Output is correct |
18 |
Correct |
94 ms |
2220 KB |
Output is correct |
19 |
Correct |
40 ms |
1024 KB |
Output is correct |
20 |
Correct |
43 ms |
1152 KB |
Output is correct |
21 |
Correct |
43 ms |
1152 KB |
Output is correct |
22 |
Correct |
39 ms |
1024 KB |
Output is correct |
23 |
Correct |
7 ms |
640 KB |
Output is correct |
24 |
Correct |
1 ms |
384 KB |
Output is correct |
25 |
Correct |
7 ms |
640 KB |
Output is correct |
26 |
Correct |
6 ms |
640 KB |
Output is correct |
27 |
Correct |
6 ms |
640 KB |
Output is correct |
28 |
Correct |
6 ms |
640 KB |
Output is correct |
29 |
Correct |
5 ms |
640 KB |
Output is correct |
30 |
Correct |
38 ms |
1024 KB |
Output is correct |
31 |
Correct |
39 ms |
1152 KB |
Output is correct |
32 |
Correct |
57 ms |
2176 KB |
Output is correct |
33 |
Correct |
42 ms |
1152 KB |
Output is correct |
34 |
Correct |
40 ms |
1152 KB |
Output is correct |
35 |
Correct |
39 ms |
1152 KB |
Output is correct |
36 |
Correct |
103 ms |
2168 KB |
Output is correct |
37 |
Correct |
0 ms |
384 KB |
Output is correct |
38 |
Correct |
1 ms |
384 KB |
Output is correct |
39 |
Correct |
40 ms |
1024 KB |
Output is correct |
40 |
Correct |
39 ms |
1024 KB |
Output is correct |
41 |
Correct |
40 ms |
1024 KB |
Output is correct |
42 |
Correct |
38 ms |
1024 KB |
Output is correct |
43 |
Correct |
37 ms |
1024 KB |
Output is correct |
44 |
Correct |
1 ms |
384 KB |
Output is correct |
45 |
Correct |
8 ms |
784 KB |
Output is correct |
46 |
Correct |
8 ms |
768 KB |
Output is correct |
47 |
Correct |
8 ms |
768 KB |
Output is correct |
48 |
Correct |
105 ms |
2168 KB |
Output is correct |
49 |
Correct |
110 ms |
2220 KB |
Output is correct |
50 |
Correct |
1 ms |
384 KB |
Output is correct |
51 |
Correct |
65 ms |
2168 KB |
Output is correct |
52 |
Correct |
51 ms |
1024 KB |
Output is correct |
53 |
Correct |
37 ms |
1024 KB |
Output is correct |
54 |
Correct |
6 ms |
640 KB |
Output is correct |
55 |
Correct |
10 ms |
640 KB |
Output is correct |
56 |
Correct |
5 ms |
640 KB |
Output is correct |
57 |
Correct |
7 ms |
640 KB |
Output is correct |
58 |
Correct |
1 ms |
384 KB |
Output is correct |
59 |
Correct |
8 ms |
640 KB |
Output is correct |
60 |
Correct |
5 ms |
640 KB |
Output is correct |
61 |
Correct |
6 ms |
640 KB |
Output is correct |
62 |
Correct |
1 ms |
384 KB |
Output is correct |
63 |
Correct |
6 ms |
640 KB |
Output is correct |