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Submission #58786

# Submission time Handle Problem Language Result Execution time Memory
58786 2018-07-19T11:31:10 Z Hoppa Travelling Merchant (APIO17_merchant) C++14
100 / 100
 293 ms 14584 KB 
#include <bits/stdc++.h>
using namespace std;
int n,m,k,u,v;
long long w,buy[105][1005],sell[105][1005],d[105][105],profit[105][105],f[105][105],ans;
int check(long long val)
{
    for(int i=1;i<=n;i++)
        for(int j=1;j<=n;j++)
            f[i][j]=profit[i][j]-val*d[i][j];
    for(int kk=1;kk<=n;kk++)
        for(int i=1;i<=n;i++)
            for(int j=1;j<=n;j++)
                if(i!=j && d[i][kk]<1e9 && d[kk][j]<1e9)
                    f[i][j]=max(f[i][j],f[i][kk]+f[kk][j]);
    for(int i=1;i<n;i++)
        for(int j=i+1;j<=n;j++)
            if(f[i][j]+f[j][i]>=0 && d[i][j]<1e9 && d[j][i]<1e9)
                return 1;
    return 0;
}
int main()
{
    cin>>n>>m>>k;
    for(int i=1;i<=n;i++)
        for(int j=1;j<=k;j++)
           cin>>buy[i][j]>>sell[i][j];
    for(int i=1;i<=n;i++)
      {
         for(int j=1;j<=n;j++)
          d[i][j]=1e9;
        d[i][i]=0;
      }
    for(int i=1;i<=m;i++)
    {
        cin>>u>>v>>w;
        d[u][v]=w;
    }
    for(int kk=1;kk<=n;kk++)
        for(int i=1;i<=n;i++)
            for(int j=1;j<=n;j++)
                d[i][j]=min(d[i][j],d[i][kk]+d[kk][j]);
    for(int i=1;i<=n;i++)
        for(int j=1;j<=n;j++)
            for(int kk=1;kk<=k;kk++)
                if(buy[i][kk]!=-1 && sell[j][kk]!=-1)
                profit[i][j]=max(profit[i][j],sell[j][kk]-buy[i][kk]);
    long long l=1,r=1e9;
    while(l<=r)
    {
        long long mid=(l+r)/2;
        if(check(mid)==1)
        {
            ans=mid;
            l=mid+1;
        }
        else r=mid-1;
    }
    cout<<ans<<"\n";
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 160 ms 3340 KB Output is correct
2 Correct 77 ms 3340 KB Output is correct
3 Correct 78 ms 3340 KB Output is correct
4 Correct 16 ms 3340 KB Output is correct
5 Correct 14 ms 3340 KB Output is correct
6 Correct 18 ms 3340 KB Output is correct
7 Correct 18 ms 3340 KB Output is correct
8 Correct 2 ms 3340 KB Output is correct
9 Correct 18 ms 3340 KB Output is correct
10 Correct 14 ms 3340 KB Output is correct
11 Correct 15 ms 3340 KB Output is correct
12 Correct 3 ms 3340 KB Output is correct
13 Correct 13 ms 3340 KB Output is correct

Subtask #2
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 3340 KB Output is correct
2 Correct 16 ms 3340 KB Output is correct
3 Correct 16 ms 3340 KB Output is correct
4 Correct 14 ms 3340 KB Output is correct
5 Correct 17 ms 3340 KB Output is correct
6 Correct 2 ms 3340 KB Output is correct
7 Correct 12 ms 3340 KB Output is correct
8 Correct 13 ms 3340 KB Output is correct
9 Correct 12 ms 3340 KB Output is correct
10 Correct 14 ms 3340 KB Output is correct
11 Correct 17 ms 3340 KB Output is correct
12 Correct 16 ms 3340 KB Output is correct
13 Correct 24 ms 3340 KB Output is correct
14 Correct 18 ms 3340 KB Output is correct
15 Correct 20 ms 3340 KB Output is correct
16 Correct 22 ms 3340 KB Output is correct
17 Correct 19 ms 3340 KB Output is correct
18 Correct 3 ms 3340 KB Output is correct
19 Correct 20 ms 3340 KB Output is correct
20 Correct 20 ms 3340 KB Output is correct
21 Correct 20 ms 3508 KB Output is correct
22 Correct 16 ms 3508 KB Output is correct
23 Correct 14 ms 3508 KB Output is correct
24 Correct 18 ms 3340 KB Output is correct
25 Correct 18 ms 3340 KB Output is correct
26 Correct 2 ms 3340 KB Output is correct
27 Correct 18 ms 3340 KB Output is correct
28 Correct 14 ms 3340 KB Output is correct
29 Correct 15 ms 3340 KB Output is correct
30 Correct 3 ms 3340 KB Output is correct
31 Correct 13 ms 3340 KB Output is correct

Subtask #3
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 105 ms 4076 KB Output is correct
2 Correct 242 ms 6684 KB Output is correct
3 Correct 86 ms 6684 KB Output is correct
4 Correct 86 ms 6684 KB Output is correct
5 Correct 96 ms 6684 KB Output is correct
6 Correct 91 ms 6684 KB Output is correct
7 Correct 19 ms 3340 KB Output is correct
8 Correct 3 ms 3340 KB Output is correct
9 Correct 20 ms 3340 KB Output is correct
10 Correct 20 ms 3340 KB Output is correct
11 Correct 20 ms 3508 KB Output is correct
12 Correct 16 ms 3508 KB Output is correct
13 Correct 14 ms 3508 KB Output is correct

Subtask #4
34.0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 3340 KB Output is correct
2 Correct 16 ms 3340 KB Output is correct
3 Correct 16 ms 3340 KB Output is correct
4 Correct 14 ms 3340 KB Output is correct
5 Correct 17 ms 3340 KB Output is correct
6 Correct 2 ms 3340 KB Output is correct
7 Correct 12 ms 3340 KB Output is correct
8 Correct 13 ms 3340 KB Output is correct
9 Correct 12 ms 3340 KB Output is correct
10 Correct 14 ms 3340 KB Output is correct
11 Correct 17 ms 3340 KB Output is correct
12 Correct 16 ms 3340 KB Output is correct
13 Correct 24 ms 3340 KB Output is correct
14 Correct 18 ms 3340 KB Output is correct
15 Correct 20 ms 3340 KB Output is correct
16 Correct 22 ms 3340 KB Output is correct
17 Correct 105 ms 4076 KB Output is correct
18 Correct 242 ms 6684 KB Output is correct
19 Correct 86 ms 6684 KB Output is correct
20 Correct 86 ms 6684 KB Output is correct
21 Correct 96 ms 6684 KB Output is correct
22 Correct 91 ms 6684 KB Output is correct
23 Correct 19 ms 3340 KB Output is correct
24 Correct 3 ms 3340 KB Output is correct
25 Correct 20 ms 3340 KB Output is correct
26 Correct 20 ms 3340 KB Output is correct
27 Correct 20 ms 3508 KB Output is correct
28 Correct 16 ms 3508 KB Output is correct
29 Correct 14 ms 3508 KB Output is correct
30 Correct 84 ms 6684 KB Output is correct
31 Correct 89 ms 6688 KB Output is correct
32 Correct 133 ms 7728 KB Output is correct
33 Correct 117 ms 7728 KB Output is correct
34 Correct 80 ms 7728 KB Output is correct
35 Correct 87 ms 7728 KB Output is correct
36 Correct 226 ms 9840 KB Output is correct
37 Correct 3 ms 9840 KB Output is correct
38 Correct 3 ms 9840 KB Output is correct
39 Correct 77 ms 9840 KB Output is correct
40 Correct 108 ms 9840 KB Output is correct
41 Correct 71 ms 9840 KB Output is correct
42 Correct 89 ms 9840 KB Output is correct
43 Correct 87 ms 9840 KB Output is correct
44 Correct 2 ms 9840 KB Output is correct
45 Correct 19 ms 9840 KB Output is correct
46 Correct 21 ms 9840 KB Output is correct
47 Correct 18 ms 9840 KB Output is correct
48 Correct 249 ms 12680 KB Output is correct
49 Correct 293 ms 14584 KB Output is correct
50 Correct 2 ms 14584 KB Output is correct
51 Correct 160 ms 3340 KB Output is correct
52 Correct 77 ms 3340 KB Output is correct
53 Correct 78 ms 3340 KB Output is correct
54 Correct 16 ms 3340 KB Output is correct
55 Correct 14 ms 3340 KB Output is correct
56 Correct 18 ms 3340 KB Output is correct
57 Correct 18 ms 3340 KB Output is correct
58 Correct 2 ms 3340 KB Output is correct
59 Correct 18 ms 3340 KB Output is correct
60 Correct 14 ms 3340 KB Output is correct
61 Correct 15 ms 3340 KB Output is correct
62 Correct 3 ms 3340 KB Output is correct
63 Correct 13 ms 3340 KB Output is correct