#pragma GCC optimize("Ofast")
#pragma GCC target("avx2")
#include <cstring>
#include <iostream>
using namespace std;
using ll=long long;
const int maxn = int(1e2) + 10;
const int maxk = int(1e3) + 10;
const ll inf = 0x3f3f3f3f * ((1ll<<32)+1);
int n, m, knd;
int buy[maxn][maxk], sell[maxn][maxk];
ll de[maxn][maxn];
int mxsell[maxn][maxn];
#define Floyd(d) { \
for (int j=1; j<=n; ++j) { \
for (int i=1; i<=n; ++i) for (int k=1; k<=n; ++k) \
d[i][k] = min(d[i][k], d[i][j] + d[j][k]); \
} \
}
int main() {
cin.tie(0)->sync_with_stdio(0);
cin >> n >> m >> knd;
n &= 127;
for (int i=1; i<=n; ++i) for (int j=1; j<=knd; ++j) {
cin >> buy[i][j] >> sell[i][j];
}
memset(de, 0x3f, sizeof(de));
for (int i=1; i<=m; ++i) {
int f, t, v; cin >> f >> t >> v;
de[f][t] = min(de[f][t], ll(v));
}
Floyd(de);
for (int t=1; t<=knd; ++t) {
for (int i=1; i<=n; ++i) if (buy[i][t] != -1)
for (int j=1; j<=n; ++j) if (sell[j][t] != -1) {
mxsell[i][j] = max(mxsell[i][j], sell[j][t]-buy[i][t]);
}
}
int ql=-1, qr=int(1e9)+10;
while (ql+1 < qr) {
int c = (ql+qr)/2;
static ll dc[maxn][maxn];
for (int i=1; i<=n; ++i) for (int j=1; j<=n; ++j) {
if (de[i][j] == inf) dc[i][j] = inf;
else dc[i][j] = c*1ll*de[i][j]-mxsell[i][j];
}
Floyd(dc);
bool loop = false;
for (int i=1; i<=n; ++i) if (dc[i][i] <= 0) { loop = true; break; }
(loop ? ql : qr) = c;
}
cout << ql << '\n';
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
94 ms |
2448 KB |
Output is correct |
2 |
Correct |
42 ms |
1228 KB |
Output is correct |
3 |
Correct |
47 ms |
1276 KB |
Output is correct |
4 |
Correct |
7 ms |
844 KB |
Output is correct |
5 |
Correct |
7 ms |
844 KB |
Output is correct |
6 |
Correct |
7 ms |
844 KB |
Output is correct |
7 |
Correct |
7 ms |
844 KB |
Output is correct |
8 |
Correct |
1 ms |
388 KB |
Output is correct |
9 |
Correct |
7 ms |
868 KB |
Output is correct |
10 |
Correct |
6 ms |
844 KB |
Output is correct |
11 |
Correct |
9 ms |
844 KB |
Output is correct |
12 |
Correct |
1 ms |
460 KB |
Output is correct |
13 |
Correct |
7 ms |
844 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
7 ms |
844 KB |
Output is correct |
2 |
Correct |
7 ms |
844 KB |
Output is correct |
3 |
Correct |
1 ms |
388 KB |
Output is correct |
4 |
Correct |
7 ms |
868 KB |
Output is correct |
5 |
Correct |
6 ms |
844 KB |
Output is correct |
6 |
Correct |
9 ms |
844 KB |
Output is correct |
7 |
Correct |
1 ms |
460 KB |
Output is correct |
8 |
Correct |
7 ms |
844 KB |
Output is correct |
9 |
Correct |
7 ms |
832 KB |
Output is correct |
10 |
Correct |
6 ms |
844 KB |
Output is correct |
11 |
Correct |
9 ms |
896 KB |
Output is correct |
12 |
Correct |
6 ms |
844 KB |
Output is correct |
13 |
Correct |
7 ms |
844 KB |
Output is correct |
14 |
Correct |
1 ms |
460 KB |
Output is correct |
15 |
Correct |
7 ms |
844 KB |
Output is correct |
16 |
Correct |
7 ms |
844 KB |
Output is correct |
17 |
Correct |
6 ms |
844 KB |
Output is correct |
18 |
Correct |
7 ms |
844 KB |
Output is correct |
19 |
Correct |
8 ms |
844 KB |
Output is correct |
20 |
Correct |
8 ms |
840 KB |
Output is correct |
21 |
Correct |
7 ms |
844 KB |
Output is correct |
22 |
Correct |
7 ms |
844 KB |
Output is correct |
23 |
Correct |
8 ms |
844 KB |
Output is correct |
24 |
Correct |
7 ms |
844 KB |
Output is correct |
25 |
Correct |
7 ms |
844 KB |
Output is correct |
26 |
Correct |
1 ms |
460 KB |
Output is correct |
27 |
Correct |
8 ms |
944 KB |
Output is correct |
28 |
Correct |
10 ms |
936 KB |
Output is correct |
29 |
Correct |
10 ms |
844 KB |
Output is correct |
30 |
Correct |
7 ms |
908 KB |
Output is correct |
31 |
Correct |
6 ms |
888 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
7 ms |
844 KB |
Output is correct |
2 |
Correct |
1 ms |
460 KB |
Output is correct |
3 |
Correct |
8 ms |
944 KB |
Output is correct |
4 |
Correct |
10 ms |
936 KB |
Output is correct |
5 |
Correct |
10 ms |
844 KB |
Output is correct |
6 |
Correct |
7 ms |
908 KB |
Output is correct |
7 |
Correct |
6 ms |
888 KB |
Output is correct |
8 |
Correct |
50 ms |
1356 KB |
Output is correct |
9 |
Correct |
87 ms |
3096 KB |
Output is correct |
10 |
Correct |
48 ms |
1356 KB |
Output is correct |
11 |
Correct |
47 ms |
1536 KB |
Output is correct |
12 |
Correct |
47 ms |
1632 KB |
Output is correct |
13 |
Correct |
43 ms |
1432 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
7 ms |
832 KB |
Output is correct |
2 |
Correct |
6 ms |
844 KB |
Output is correct |
3 |
Correct |
9 ms |
896 KB |
Output is correct |
4 |
Correct |
6 ms |
844 KB |
Output is correct |
5 |
Correct |
7 ms |
844 KB |
Output is correct |
6 |
Correct |
1 ms |
460 KB |
Output is correct |
7 |
Correct |
7 ms |
844 KB |
Output is correct |
8 |
Correct |
7 ms |
844 KB |
Output is correct |
9 |
Correct |
6 ms |
844 KB |
Output is correct |
10 |
Correct |
7 ms |
844 KB |
Output is correct |
11 |
Correct |
8 ms |
844 KB |
Output is correct |
12 |
Correct |
8 ms |
840 KB |
Output is correct |
13 |
Correct |
7 ms |
844 KB |
Output is correct |
14 |
Correct |
7 ms |
844 KB |
Output is correct |
15 |
Correct |
8 ms |
844 KB |
Output is correct |
16 |
Correct |
7 ms |
844 KB |
Output is correct |
17 |
Correct |
50 ms |
1356 KB |
Output is correct |
18 |
Correct |
87 ms |
3096 KB |
Output is correct |
19 |
Correct |
48 ms |
1356 KB |
Output is correct |
20 |
Correct |
47 ms |
1536 KB |
Output is correct |
21 |
Correct |
47 ms |
1632 KB |
Output is correct |
22 |
Correct |
43 ms |
1432 KB |
Output is correct |
23 |
Correct |
7 ms |
844 KB |
Output is correct |
24 |
Correct |
1 ms |
460 KB |
Output is correct |
25 |
Correct |
8 ms |
944 KB |
Output is correct |
26 |
Correct |
10 ms |
936 KB |
Output is correct |
27 |
Correct |
10 ms |
844 KB |
Output is correct |
28 |
Correct |
7 ms |
908 KB |
Output is correct |
29 |
Correct |
6 ms |
888 KB |
Output is correct |
30 |
Correct |
94 ms |
2448 KB |
Output is correct |
31 |
Correct |
42 ms |
1228 KB |
Output is correct |
32 |
Correct |
47 ms |
1276 KB |
Output is correct |
33 |
Correct |
7 ms |
844 KB |
Output is correct |
34 |
Correct |
7 ms |
844 KB |
Output is correct |
35 |
Correct |
7 ms |
844 KB |
Output is correct |
36 |
Correct |
7 ms |
844 KB |
Output is correct |
37 |
Correct |
1 ms |
388 KB |
Output is correct |
38 |
Correct |
7 ms |
868 KB |
Output is correct |
39 |
Correct |
6 ms |
844 KB |
Output is correct |
40 |
Correct |
9 ms |
844 KB |
Output is correct |
41 |
Correct |
1 ms |
460 KB |
Output is correct |
42 |
Correct |
7 ms |
844 KB |
Output is correct |
43 |
Correct |
42 ms |
1356 KB |
Output is correct |
44 |
Correct |
43 ms |
1400 KB |
Output is correct |
45 |
Correct |
64 ms |
1820 KB |
Output is correct |
46 |
Correct |
43 ms |
1388 KB |
Output is correct |
47 |
Correct |
54 ms |
1356 KB |
Output is correct |
48 |
Correct |
47 ms |
1356 KB |
Output is correct |
49 |
Correct |
90 ms |
3196 KB |
Output is correct |
50 |
Correct |
1 ms |
460 KB |
Output is correct |
51 |
Correct |
1 ms |
460 KB |
Output is correct |
52 |
Correct |
42 ms |
1332 KB |
Output is correct |
53 |
Correct |
43 ms |
1356 KB |
Output is correct |
54 |
Correct |
42 ms |
1360 KB |
Output is correct |
55 |
Correct |
41 ms |
1332 KB |
Output is correct |
56 |
Correct |
44 ms |
1228 KB |
Output is correct |
57 |
Correct |
1 ms |
460 KB |
Output is correct |
58 |
Correct |
8 ms |
972 KB |
Output is correct |
59 |
Correct |
8 ms |
972 KB |
Output is correct |
60 |
Correct |
10 ms |
972 KB |
Output is correct |
61 |
Correct |
96 ms |
3324 KB |
Output is correct |
62 |
Correct |
91 ms |
3320 KB |
Output is correct |
63 |
Correct |
1 ms |
460 KB |
Output is correct |