#include <bits/stdc++.h>
#define CHECK cout << "ok" << endl
#define finish(x) return cout << x << endl, 0
typedef long long ll;
typedef long double ldb;
const int md = 1e9 + 7;
const ll inf = 1e18;
const int OO = 1;
const int OOO = 1;
using namespace std;
int n, m, k;
ll B[101][1001], S[101][1001];
ll D[101][101] = {}, W[101][101];
ll d[101][101];
ll dist[101], cnt[101];
bool check(ll x) {
for (int i = 0; i < n; i++) for (int j = 0; j < n; j++)
d[i][j] = W[i][j] - x * D[i][j];
for (int i = 0; i < n; i++) dist[i] = cnt[i] = 0;
for (int iter = 0; iter <= n; iter++) {
for (int i = 0; i < n; i++)
for (int j = 0; j < n; j++) {
if (i != j) {
if (make_pair(dist[j], cnt[j]) < make_pair(dist[i] + d[i][j], cnt[i] + 1)) {
if (iter == n) return true;
dist[j] = dist[i] + d[i][j];
cnt[j] = cnt[i] + 1;
}
}
}
}
return false;
}
void preprocess() {
for (int i = 0; i < n; i++)
for (int j = 0; j < n; j++)
if (i != j) {
for (int x = 0; x < k; x++)
if (B[i][x] != -1 && S[j][x] != -1)
W[i][j] = max(W[i][j], S[j][x] - B[i][x]);
}
for (int u = 0; u < n; u++)
for (int i = 0; i < n; i++)
for (int j = 0; j < n; j++)
D[i][j] = min(D[i][j], D[i][u] + D[u][j]);
}
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++)
cin >> B[i][j] >> S[i][j];
}
for (int i = 0; i < n; i++) for (int j = 0; j < n; j++) {
W[i][j] = 0;
if (i != j) D[i][j] = inf;
}
for (int i = 0, u, v, w; i < m; i++) {
cin >> u >> v >> w;
--u, --v;
D[u][v] = w;
}
preprocess();
ll lo = 0, hi = 1e9 + 3, mid;
while (lo < hi) {
mid = (lo + hi + 1) / 2;
if (check(mid)) lo = mid;
else hi = mid - 1;
}
finish(lo);
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
80 ms |
2196 KB |
Output is correct |
2 |
Correct |
52 ms |
1324 KB |
Output is correct |
3 |
Correct |
81 ms |
1408 KB |
Output is correct |
4 |
Correct |
15 ms |
896 KB |
Output is correct |
5 |
Correct |
10 ms |
896 KB |
Output is correct |
6 |
Correct |
10 ms |
896 KB |
Output is correct |
7 |
Correct |
15 ms |
896 KB |
Output is correct |
8 |
Correct |
2 ms |
384 KB |
Output is correct |
9 |
Correct |
9 ms |
896 KB |
Output is correct |
10 |
Correct |
10 ms |
896 KB |
Output is correct |
11 |
Correct |
9 ms |
896 KB |
Output is correct |
12 |
Correct |
3 ms |
512 KB |
Output is correct |
13 |
Correct |
16 ms |
896 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
10 ms |
896 KB |
Output is correct |
2 |
Correct |
9 ms |
896 KB |
Output is correct |
3 |
Correct |
9 ms |
972 KB |
Output is correct |
4 |
Correct |
12 ms |
896 KB |
Output is correct |
5 |
Correct |
15 ms |
896 KB |
Output is correct |
6 |
Correct |
2 ms |
384 KB |
Output is correct |
7 |
Correct |
9 ms |
896 KB |
Output is correct |
8 |
Correct |
10 ms |
896 KB |
Output is correct |
9 |
Correct |
10 ms |
896 KB |
Output is correct |
10 |
Correct |
16 ms |
896 KB |
Output is correct |
11 |
Correct |
15 ms |
896 KB |
Output is correct |
12 |
Correct |
12 ms |
896 KB |
Output is correct |
13 |
Correct |
10 ms |
896 KB |
Output is correct |
14 |
Correct |
11 ms |
896 KB |
Output is correct |
15 |
Correct |
11 ms |
940 KB |
Output is correct |
16 |
Correct |
10 ms |
896 KB |
Output is correct |
17 |
Correct |
13 ms |
896 KB |
Output is correct |
18 |
Correct |
3 ms |
384 KB |
Output is correct |
19 |
Correct |
12 ms |
896 KB |
Output is correct |
20 |
Correct |
11 ms |
896 KB |
Output is correct |
21 |
Correct |
10 ms |
896 KB |
Output is correct |
22 |
Correct |
11 ms |
896 KB |
Output is correct |
23 |
Correct |
10 ms |
896 KB |
Output is correct |
24 |
Correct |
10 ms |
896 KB |
Output is correct |
25 |
Correct |
15 ms |
896 KB |
Output is correct |
26 |
Correct |
2 ms |
384 KB |
Output is correct |
27 |
Correct |
9 ms |
896 KB |
Output is correct |
28 |
Correct |
10 ms |
896 KB |
Output is correct |
29 |
Correct |
9 ms |
896 KB |
Output is correct |
30 |
Correct |
3 ms |
512 KB |
Output is correct |
31 |
Correct |
16 ms |
896 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
59 ms |
1656 KB |
Output is correct |
2 |
Correct |
99 ms |
2168 KB |
Output is correct |
3 |
Correct |
55 ms |
1408 KB |
Output is correct |
4 |
Correct |
55 ms |
1536 KB |
Output is correct |
5 |
Correct |
62 ms |
1620 KB |
Output is correct |
6 |
Correct |
52 ms |
1408 KB |
Output is correct |
7 |
Correct |
13 ms |
896 KB |
Output is correct |
8 |
Correct |
3 ms |
384 KB |
Output is correct |
9 |
Correct |
12 ms |
896 KB |
Output is correct |
10 |
Correct |
11 ms |
896 KB |
Output is correct |
11 |
Correct |
10 ms |
896 KB |
Output is correct |
12 |
Correct |
11 ms |
896 KB |
Output is correct |
13 |
Correct |
10 ms |
896 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
10 ms |
896 KB |
Output is correct |
2 |
Correct |
9 ms |
896 KB |
Output is correct |
3 |
Correct |
9 ms |
972 KB |
Output is correct |
4 |
Correct |
12 ms |
896 KB |
Output is correct |
5 |
Correct |
15 ms |
896 KB |
Output is correct |
6 |
Correct |
2 ms |
384 KB |
Output is correct |
7 |
Correct |
9 ms |
896 KB |
Output is correct |
8 |
Correct |
10 ms |
896 KB |
Output is correct |
9 |
Correct |
10 ms |
896 KB |
Output is correct |
10 |
Correct |
16 ms |
896 KB |
Output is correct |
11 |
Correct |
15 ms |
896 KB |
Output is correct |
12 |
Correct |
12 ms |
896 KB |
Output is correct |
13 |
Correct |
10 ms |
896 KB |
Output is correct |
14 |
Correct |
11 ms |
896 KB |
Output is correct |
15 |
Correct |
11 ms |
940 KB |
Output is correct |
16 |
Correct |
10 ms |
896 KB |
Output is correct |
17 |
Correct |
59 ms |
1656 KB |
Output is correct |
18 |
Correct |
99 ms |
2168 KB |
Output is correct |
19 |
Correct |
55 ms |
1408 KB |
Output is correct |
20 |
Correct |
55 ms |
1536 KB |
Output is correct |
21 |
Correct |
62 ms |
1620 KB |
Output is correct |
22 |
Correct |
52 ms |
1408 KB |
Output is correct |
23 |
Correct |
13 ms |
896 KB |
Output is correct |
24 |
Correct |
3 ms |
384 KB |
Output is correct |
25 |
Correct |
12 ms |
896 KB |
Output is correct |
26 |
Correct |
11 ms |
896 KB |
Output is correct |
27 |
Correct |
10 ms |
896 KB |
Output is correct |
28 |
Correct |
11 ms |
896 KB |
Output is correct |
29 |
Correct |
10 ms |
896 KB |
Output is correct |
30 |
Correct |
61 ms |
1460 KB |
Output is correct |
31 |
Correct |
59 ms |
1536 KB |
Output is correct |
32 |
Correct |
79 ms |
2168 KB |
Output is correct |
33 |
Correct |
60 ms |
1536 KB |
Output is correct |
34 |
Correct |
60 ms |
1536 KB |
Output is correct |
35 |
Correct |
108 ms |
1580 KB |
Output is correct |
36 |
Correct |
96 ms |
2168 KB |
Output is correct |
37 |
Correct |
2 ms |
384 KB |
Output is correct |
38 |
Correct |
2 ms |
512 KB |
Output is correct |
39 |
Correct |
54 ms |
1476 KB |
Output is correct |
40 |
Correct |
56 ms |
1324 KB |
Output is correct |
41 |
Correct |
57 ms |
1408 KB |
Output is correct |
42 |
Correct |
63 ms |
1528 KB |
Output is correct |
43 |
Correct |
57 ms |
1408 KB |
Output is correct |
44 |
Correct |
2 ms |
384 KB |
Output is correct |
45 |
Correct |
13 ms |
1024 KB |
Output is correct |
46 |
Correct |
12 ms |
1024 KB |
Output is correct |
47 |
Correct |
36 ms |
1024 KB |
Output is correct |
48 |
Correct |
104 ms |
2168 KB |
Output is correct |
49 |
Correct |
129 ms |
2228 KB |
Output is correct |
50 |
Correct |
3 ms |
532 KB |
Output is correct |
51 |
Correct |
80 ms |
2196 KB |
Output is correct |
52 |
Correct |
52 ms |
1324 KB |
Output is correct |
53 |
Correct |
81 ms |
1408 KB |
Output is correct |
54 |
Correct |
15 ms |
896 KB |
Output is correct |
55 |
Correct |
10 ms |
896 KB |
Output is correct |
56 |
Correct |
10 ms |
896 KB |
Output is correct |
57 |
Correct |
15 ms |
896 KB |
Output is correct |
58 |
Correct |
2 ms |
384 KB |
Output is correct |
59 |
Correct |
9 ms |
896 KB |
Output is correct |
60 |
Correct |
10 ms |
896 KB |
Output is correct |
61 |
Correct |
9 ms |
896 KB |
Output is correct |
62 |
Correct |
3 ms |
512 KB |
Output is correct |
63 |
Correct |
16 ms |
896 KB |
Output is correct |