#include <iostream>
#include <vector>
#include <climits>
using namespace std;
int N, M, K;
vector<vector<long long>> dist;
vector<vector<long long>> grid;
vector<vector<int>> buy;
vector<vector<int>> sell;
vector<vector<int>> earn;
bool test(long long salary) {
grid = vector<vector<long long>>(N, vector<long long>(N, LLONG_MAX/2));
for (int i=0;i<N;i++) {
for (int j=0;j<N;j++) {
if (dist[i][j] < LLONG_MAX/2) {
grid[i][j] = dist[i][j] * salary - earn[i][j];
}
}
}
for (int k=0;k<N;k++) {
for (int i=0;i<N;i++) {
for (int j=0;j<N;j++) {
grid[i][j] = min(grid[i][j], grid[i][k] + grid[k][j]);
}
}
}
for (int i=0;i<N;i++) {
if (grid[i][i] <= 0) return true;
}
return false;
}
int bsearch(int mn, int mx) {
if (mn == mx) return mn;
int md = (mn+mx+1)/2;
if (test(md)) {
return bsearch(md,mx);
}
else {
return bsearch(mn,md-1);
}
}
int main() {
cin >> N >> M >> K;
dist = vector<vector<long long>>(N, vector<long long>(N, LLONG_MAX/2));
buy = vector<vector<int>>(N, vector<int>(K, -1));
sell = vector<vector<int>>(N, vector<int>(K, -1));
earn = vector<vector<int>>(N, vector<int>(N, 0));
for (int i=0;i<N;i++) {
//dist[i][i] = 0;
for (int j=0;j<K;j++) {
cin >> buy[i][j] >> sell[i][j];
}
}
for (int i=0;i<M;i++) {
int V, W, T;
cin >> V >> W >> T;
V--;
W--;
dist[V][W] = min<long long>(dist[V][W], T);
}
for (int k=0;k<N;k++) {
for (int i=0;i<N;i++) {
for (int j=0;j<N;j++) {
dist[i][j] = min(dist[i][j], dist[i][k] + dist[k][j]);
}
}
}
for (int i=0;i<N;i++) {
for (int j=0;j<N;j++) {
for (int k=0;k<K;k++) {
if (sell[j][k] != -1 && buy[i][k] != -1) {
earn[i][j] = max(earn[i][j], sell[j][k] - buy[i][k]);
}
}
}
}
cout << bsearch(0, 1000000000) << endl;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
151 ms |
1460 KB |
Output is correct |
2 |
Correct |
46 ms |
1460 KB |
Output is correct |
3 |
Correct |
45 ms |
1460 KB |
Output is correct |
4 |
Correct |
8 ms |
1460 KB |
Output is correct |
5 |
Correct |
8 ms |
1460 KB |
Output is correct |
6 |
Correct |
8 ms |
1460 KB |
Output is correct |
7 |
Correct |
10 ms |
1460 KB |
Output is correct |
8 |
Correct |
2 ms |
1460 KB |
Output is correct |
9 |
Correct |
9 ms |
1460 KB |
Output is correct |
10 |
Correct |
8 ms |
1460 KB |
Output is correct |
11 |
Correct |
8 ms |
1460 KB |
Output is correct |
12 |
Correct |
2 ms |
1460 KB |
Output is correct |
13 |
Correct |
11 ms |
1460 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
9 ms |
1460 KB |
Output is correct |
2 |
Correct |
9 ms |
1460 KB |
Output is correct |
3 |
Correct |
16 ms |
1460 KB |
Output is correct |
4 |
Correct |
9 ms |
1460 KB |
Output is correct |
5 |
Correct |
12 ms |
1460 KB |
Output is correct |
6 |
Correct |
3 ms |
1460 KB |
Output is correct |
7 |
Correct |
14 ms |
1460 KB |
Output is correct |
8 |
Correct |
11 ms |
1460 KB |
Output is correct |
9 |
Correct |
9 ms |
1460 KB |
Output is correct |
10 |
Correct |
9 ms |
1460 KB |
Output is correct |
11 |
Correct |
10 ms |
1460 KB |
Output is correct |
12 |
Correct |
19 ms |
1460 KB |
Output is correct |
13 |
Correct |
12 ms |
1460 KB |
Output is correct |
14 |
Correct |
10 ms |
1460 KB |
Output is correct |
15 |
Correct |
13 ms |
1460 KB |
Output is correct |
16 |
Correct |
14 ms |
1460 KB |
Output is correct |
17 |
Correct |
10 ms |
1460 KB |
Output is correct |
18 |
Correct |
2 ms |
1460 KB |
Output is correct |
19 |
Correct |
12 ms |
1460 KB |
Output is correct |
20 |
Correct |
11 ms |
1460 KB |
Output is correct |
21 |
Correct |
12 ms |
1460 KB |
Output is correct |
22 |
Correct |
13 ms |
1460 KB |
Output is correct |
23 |
Correct |
8 ms |
1460 KB |
Output is correct |
24 |
Correct |
8 ms |
1460 KB |
Output is correct |
25 |
Correct |
10 ms |
1460 KB |
Output is correct |
26 |
Correct |
2 ms |
1460 KB |
Output is correct |
27 |
Correct |
9 ms |
1460 KB |
Output is correct |
28 |
Correct |
8 ms |
1460 KB |
Output is correct |
29 |
Correct |
8 ms |
1460 KB |
Output is correct |
30 |
Correct |
2 ms |
1460 KB |
Output is correct |
31 |
Correct |
11 ms |
1460 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
58 ms |
1460 KB |
Output is correct |
2 |
Correct |
237 ms |
1664 KB |
Output is correct |
3 |
Correct |
50 ms |
1664 KB |
Output is correct |
4 |
Correct |
61 ms |
1664 KB |
Output is correct |
5 |
Correct |
61 ms |
1664 KB |
Output is correct |
6 |
Correct |
49 ms |
1664 KB |
Output is correct |
7 |
Correct |
10 ms |
1460 KB |
Output is correct |
8 |
Correct |
2 ms |
1460 KB |
Output is correct |
9 |
Correct |
12 ms |
1460 KB |
Output is correct |
10 |
Correct |
11 ms |
1460 KB |
Output is correct |
11 |
Correct |
12 ms |
1460 KB |
Output is correct |
12 |
Correct |
13 ms |
1460 KB |
Output is correct |
13 |
Correct |
8 ms |
1460 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
9 ms |
1460 KB |
Output is correct |
2 |
Correct |
9 ms |
1460 KB |
Output is correct |
3 |
Correct |
16 ms |
1460 KB |
Output is correct |
4 |
Correct |
9 ms |
1460 KB |
Output is correct |
5 |
Correct |
12 ms |
1460 KB |
Output is correct |
6 |
Correct |
3 ms |
1460 KB |
Output is correct |
7 |
Correct |
14 ms |
1460 KB |
Output is correct |
8 |
Correct |
11 ms |
1460 KB |
Output is correct |
9 |
Correct |
9 ms |
1460 KB |
Output is correct |
10 |
Correct |
9 ms |
1460 KB |
Output is correct |
11 |
Correct |
10 ms |
1460 KB |
Output is correct |
12 |
Correct |
19 ms |
1460 KB |
Output is correct |
13 |
Correct |
12 ms |
1460 KB |
Output is correct |
14 |
Correct |
10 ms |
1460 KB |
Output is correct |
15 |
Correct |
13 ms |
1460 KB |
Output is correct |
16 |
Correct |
14 ms |
1460 KB |
Output is correct |
17 |
Correct |
58 ms |
1460 KB |
Output is correct |
18 |
Correct |
237 ms |
1664 KB |
Output is correct |
19 |
Correct |
50 ms |
1664 KB |
Output is correct |
20 |
Correct |
61 ms |
1664 KB |
Output is correct |
21 |
Correct |
61 ms |
1664 KB |
Output is correct |
22 |
Correct |
49 ms |
1664 KB |
Output is correct |
23 |
Correct |
10 ms |
1460 KB |
Output is correct |
24 |
Correct |
2 ms |
1460 KB |
Output is correct |
25 |
Correct |
12 ms |
1460 KB |
Output is correct |
26 |
Correct |
11 ms |
1460 KB |
Output is correct |
27 |
Correct |
12 ms |
1460 KB |
Output is correct |
28 |
Correct |
13 ms |
1460 KB |
Output is correct |
29 |
Correct |
8 ms |
1460 KB |
Output is correct |
30 |
Correct |
46 ms |
1664 KB |
Output is correct |
31 |
Correct |
51 ms |
1664 KB |
Output is correct |
32 |
Correct |
86 ms |
1664 KB |
Output is correct |
33 |
Correct |
47 ms |
1664 KB |
Output is correct |
34 |
Correct |
49 ms |
1664 KB |
Output is correct |
35 |
Correct |
46 ms |
1664 KB |
Output is correct |
36 |
Correct |
173 ms |
1792 KB |
Output is correct |
37 |
Correct |
2 ms |
1792 KB |
Output is correct |
38 |
Correct |
2 ms |
1792 KB |
Output is correct |
39 |
Correct |
45 ms |
1792 KB |
Output is correct |
40 |
Correct |
55 ms |
1792 KB |
Output is correct |
41 |
Correct |
43 ms |
1792 KB |
Output is correct |
42 |
Correct |
43 ms |
1792 KB |
Output is correct |
43 |
Correct |
41 ms |
1792 KB |
Output is correct |
44 |
Correct |
2 ms |
1792 KB |
Output is correct |
45 |
Correct |
19 ms |
1792 KB |
Output is correct |
46 |
Correct |
16 ms |
1792 KB |
Output is correct |
47 |
Correct |
16 ms |
1792 KB |
Output is correct |
48 |
Correct |
213 ms |
1792 KB |
Output is correct |
49 |
Correct |
177 ms |
1792 KB |
Output is correct |
50 |
Correct |
2 ms |
1792 KB |
Output is correct |
51 |
Correct |
151 ms |
1460 KB |
Output is correct |
52 |
Correct |
46 ms |
1460 KB |
Output is correct |
53 |
Correct |
45 ms |
1460 KB |
Output is correct |
54 |
Correct |
8 ms |
1460 KB |
Output is correct |
55 |
Correct |
8 ms |
1460 KB |
Output is correct |
56 |
Correct |
8 ms |
1460 KB |
Output is correct |
57 |
Correct |
10 ms |
1460 KB |
Output is correct |
58 |
Correct |
2 ms |
1460 KB |
Output is correct |
59 |
Correct |
9 ms |
1460 KB |
Output is correct |
60 |
Correct |
8 ms |
1460 KB |
Output is correct |
61 |
Correct |
8 ms |
1460 KB |
Output is correct |
62 |
Correct |
2 ms |
1460 KB |
Output is correct |
63 |
Correct |
11 ms |
1460 KB |
Output is correct |