//Oct14
#include <iostream>
#include <stdio.h>
using namespace std;
const int maxn = 105, inf = 1e9;
int n, m, k, a[maxn][maxn], vl[maxn][maxn], b[maxn][maxn*10], s[maxn][maxn*10];
long long d[maxn][maxn];
void Enter()
{
cin>>n>>m>>k;
for (int i=1;i<=n;++i)
for (int j=1;j<=n;++j)
a[i][j]=inf;
for (int i=1;i<=n;++i)
for (int j=1;j<=k;++j)
cin>>b[i][j]>>s[i][j];
while(m--)
{
int u, v, w;
cin>>u>>v>>w;
a[u][v]=min(a[u][v],w);
}
}
void Prepare()
{
for (int t=1;t<=n;++t)
for (int i=1;i<=n;++i)
for (int j=1;j<=n;++j)
a[i][j]=min(a[i][j],a[i][t]+a[t][j]);
for(int i=1;i<=n;++i)
for(int j=1;j<=n;++j)
for(int t=1;t<=k;++t)
if (b[i][t]!=-1&&s[j][t]!=-1)
vl[i][j]=max(vl[i][j],s[j][t]-b[i][t]);
}
bool Check(int mid)
{
for (int i=1;i<=n;++i)
for (int j=1;j<=n;++j)
{
d[i][j]=-inf;
if(a[i][j]==inf)
continue;
d[i][j]=vl[i][j]-1ll*mid*a[i][j];
}
for (int t=1;t<=n;++t)
for (int i=1;i<=n;++i)
for (int j=1;j<=n;++j)
d[i][j]=min(1ll*inf,max(d[i][j],d[i][t]+d[t][j]));
for(int i=1;i<=n;++i)
if(d[i][i]>=0)
return true;
return false;
}
void Solve()
{
int l=1, h=1e9, mid;
while(l<=h)
{
mid=(l+h)/2;
if (Check(mid))
l=mid+1;
else
h=mid-1;
}
cout<<h;
}
int main(void)
{
ios_base::sync_with_stdio(0);
cin.tie(0);
Enter();
Prepare();
Solve();
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
76 ms |
2560 KB |
Output is correct |
2 |
Correct |
45 ms |
1280 KB |
Output is correct |
3 |
Correct |
47 ms |
1280 KB |
Output is correct |
4 |
Correct |
7 ms |
768 KB |
Output is correct |
5 |
Correct |
7 ms |
768 KB |
Output is correct |
6 |
Correct |
7 ms |
768 KB |
Output is correct |
7 |
Correct |
8 ms |
896 KB |
Output is correct |
8 |
Correct |
0 ms |
384 KB |
Output is correct |
9 |
Correct |
7 ms |
768 KB |
Output is correct |
10 |
Correct |
7 ms |
768 KB |
Output is correct |
11 |
Correct |
7 ms |
768 KB |
Output is correct |
12 |
Correct |
1 ms |
392 KB |
Output is correct |
13 |
Correct |
8 ms |
896 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
8 ms |
896 KB |
Output is correct |
2 |
Correct |
8 ms |
896 KB |
Output is correct |
3 |
Correct |
8 ms |
896 KB |
Output is correct |
4 |
Correct |
7 ms |
768 KB |
Output is correct |
5 |
Correct |
8 ms |
896 KB |
Output is correct |
6 |
Correct |
1 ms |
384 KB |
Output is correct |
7 |
Correct |
7 ms |
896 KB |
Output is correct |
8 |
Correct |
7 ms |
896 KB |
Output is correct |
9 |
Correct |
9 ms |
896 KB |
Output is correct |
10 |
Correct |
9 ms |
896 KB |
Output is correct |
11 |
Correct |
8 ms |
896 KB |
Output is correct |
12 |
Correct |
8 ms |
896 KB |
Output is correct |
13 |
Correct |
8 ms |
896 KB |
Output is correct |
14 |
Correct |
8 ms |
896 KB |
Output is correct |
15 |
Correct |
9 ms |
896 KB |
Output is correct |
16 |
Correct |
7 ms |
896 KB |
Output is correct |
17 |
Correct |
8 ms |
896 KB |
Output is correct |
18 |
Correct |
0 ms |
384 KB |
Output is correct |
19 |
Correct |
9 ms |
896 KB |
Output is correct |
20 |
Correct |
8 ms |
896 KB |
Output is correct |
21 |
Correct |
8 ms |
896 KB |
Output is correct |
22 |
Correct |
8 ms |
896 KB |
Output is correct |
23 |
Correct |
7 ms |
768 KB |
Output is correct |
24 |
Correct |
7 ms |
768 KB |
Output is correct |
25 |
Correct |
8 ms |
896 KB |
Output is correct |
26 |
Correct |
0 ms |
384 KB |
Output is correct |
27 |
Correct |
7 ms |
768 KB |
Output is correct |
28 |
Correct |
7 ms |
768 KB |
Output is correct |
29 |
Correct |
7 ms |
768 KB |
Output is correct |
30 |
Correct |
1 ms |
392 KB |
Output is correct |
31 |
Correct |
8 ms |
896 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
52 ms |
1408 KB |
Output is correct |
2 |
Correct |
100 ms |
3064 KB |
Output is correct |
3 |
Correct |
52 ms |
1408 KB |
Output is correct |
4 |
Correct |
54 ms |
1656 KB |
Output is correct |
5 |
Correct |
54 ms |
1664 KB |
Output is correct |
6 |
Correct |
50 ms |
1408 KB |
Output is correct |
7 |
Correct |
8 ms |
896 KB |
Output is correct |
8 |
Correct |
0 ms |
384 KB |
Output is correct |
9 |
Correct |
9 ms |
896 KB |
Output is correct |
10 |
Correct |
8 ms |
896 KB |
Output is correct |
11 |
Correct |
8 ms |
896 KB |
Output is correct |
12 |
Correct |
8 ms |
896 KB |
Output is correct |
13 |
Correct |
7 ms |
768 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
8 ms |
896 KB |
Output is correct |
2 |
Correct |
8 ms |
896 KB |
Output is correct |
3 |
Correct |
8 ms |
896 KB |
Output is correct |
4 |
Correct |
7 ms |
768 KB |
Output is correct |
5 |
Correct |
8 ms |
896 KB |
Output is correct |
6 |
Correct |
1 ms |
384 KB |
Output is correct |
7 |
Correct |
7 ms |
896 KB |
Output is correct |
8 |
Correct |
7 ms |
896 KB |
Output is correct |
9 |
Correct |
9 ms |
896 KB |
Output is correct |
10 |
Correct |
9 ms |
896 KB |
Output is correct |
11 |
Correct |
8 ms |
896 KB |
Output is correct |
12 |
Correct |
8 ms |
896 KB |
Output is correct |
13 |
Correct |
8 ms |
896 KB |
Output is correct |
14 |
Correct |
8 ms |
896 KB |
Output is correct |
15 |
Correct |
9 ms |
896 KB |
Output is correct |
16 |
Correct |
7 ms |
896 KB |
Output is correct |
17 |
Correct |
52 ms |
1408 KB |
Output is correct |
18 |
Correct |
100 ms |
3064 KB |
Output is correct |
19 |
Correct |
52 ms |
1408 KB |
Output is correct |
20 |
Correct |
54 ms |
1656 KB |
Output is correct |
21 |
Correct |
54 ms |
1664 KB |
Output is correct |
22 |
Correct |
50 ms |
1408 KB |
Output is correct |
23 |
Correct |
8 ms |
896 KB |
Output is correct |
24 |
Correct |
0 ms |
384 KB |
Output is correct |
25 |
Correct |
9 ms |
896 KB |
Output is correct |
26 |
Correct |
8 ms |
896 KB |
Output is correct |
27 |
Correct |
8 ms |
896 KB |
Output is correct |
28 |
Correct |
8 ms |
896 KB |
Output is correct |
29 |
Correct |
7 ms |
768 KB |
Output is correct |
30 |
Correct |
48 ms |
1388 KB |
Output is correct |
31 |
Correct |
50 ms |
1408 KB |
Output is correct |
32 |
Correct |
69 ms |
1792 KB |
Output is correct |
33 |
Correct |
51 ms |
1408 KB |
Output is correct |
34 |
Correct |
63 ms |
1440 KB |
Output is correct |
35 |
Correct |
50 ms |
1408 KB |
Output is correct |
36 |
Correct |
108 ms |
3344 KB |
Output is correct |
37 |
Correct |
1 ms |
384 KB |
Output is correct |
38 |
Correct |
1 ms |
384 KB |
Output is correct |
39 |
Correct |
48 ms |
1280 KB |
Output is correct |
40 |
Correct |
50 ms |
1408 KB |
Output is correct |
41 |
Correct |
50 ms |
1528 KB |
Output is correct |
42 |
Correct |
49 ms |
1280 KB |
Output is correct |
43 |
Correct |
47 ms |
1280 KB |
Output is correct |
44 |
Correct |
1 ms |
384 KB |
Output is correct |
45 |
Correct |
9 ms |
896 KB |
Output is correct |
46 |
Correct |
10 ms |
1024 KB |
Output is correct |
47 |
Correct |
9 ms |
896 KB |
Output is correct |
48 |
Correct |
109 ms |
3448 KB |
Output is correct |
49 |
Correct |
111 ms |
3320 KB |
Output is correct |
50 |
Correct |
1 ms |
384 KB |
Output is correct |
51 |
Correct |
76 ms |
2560 KB |
Output is correct |
52 |
Correct |
45 ms |
1280 KB |
Output is correct |
53 |
Correct |
47 ms |
1280 KB |
Output is correct |
54 |
Correct |
7 ms |
768 KB |
Output is correct |
55 |
Correct |
7 ms |
768 KB |
Output is correct |
56 |
Correct |
7 ms |
768 KB |
Output is correct |
57 |
Correct |
8 ms |
896 KB |
Output is correct |
58 |
Correct |
0 ms |
384 KB |
Output is correct |
59 |
Correct |
7 ms |
768 KB |
Output is correct |
60 |
Correct |
7 ms |
768 KB |
Output is correct |
61 |
Correct |
7 ms |
768 KB |
Output is correct |
62 |
Correct |
1 ms |
392 KB |
Output is correct |
63 |
Correct |
8 ms |
896 KB |
Output is correct |