oj.uz

Submission #972242

# Submission time Handle Problem Language Result Execution time Memory
972242 2024-04-30T09:41:45 Z vjudge1 Travelling Merchant (APIO17_merchant) C++14
100 / 100
 72 ms 4532 KB 
#include<bits/stdc++.h>

using namespace std;

#define int long long

const int N=110, K=1010, inf=1e18;
int n, m, _k;
int b[N][K], s[N][K];
vector<pair<pair<int, int>, int>> e;
int d[N][N];
int g[N][N];
int f[N][N];

bool check(int mid){
   for (int i=1; i<=n; ++i) for (int j=1; j<=n; ++j){
      f[i][j]=inf;
      if (d[i][j]!=inf && d[i][j]<inf/mid) f[i][j]=mid*d[i][j]-g[i][j];
   }
   for (int k=1; k<=n; ++k){
      for (int i=1; i<=n; ++i) for (int j=1; j<=n; ++j){
         f[i][j]=min(f[i][j], f[i][k]+f[k][j]);
      }
   }
   for (int i=1; i<=n; ++i) if (f[i][i]<=0) return true;
   return false;
}

int32_t main(){
   ios_base::sync_with_stdio(false);
   cin.tie(nullptr);
   cin >> n >> m >> _k;
   for (int i=1; i<=n; ++i) for (int j=1; j<=_k; ++j) cin >> b[i][j] >> s[i][j];
   e.resize(m);
   for (int i=1; i<=n; ++i) for (int j=1; j<=n; ++j) d[i][j]=inf;
   for (auto &i:e){
      cin >> i.first.first >> i.first.second >> i.second;
      d[i.first.first][i.first.second]=min(d[i.first.first][i.first.second], i.second);
   }
   for (int k=1; k<=n; ++k) for (int i=1; i<=n; ++i) for (int j=1; j<=n; ++j){
      if (d[i][k]!=inf && d[k][j]!=inf) d[i][j]=min(d[i][j], d[i][k]+d[k][j]);
   }
   for (int i=1; i<=_k; ++i){
      for (int u=1; u<=n; ++u) for (int v=1; v<=n; ++v) if (b[u][i]!=-1 && s[v][i]!=-1 && b[u][i]<s[v][i]){
         g[u][v]=max(g[u][v], s[v][i]-b[u][i]);
      }
   }
   int l=1, r=1e9;
   while (l<=r){
      int mid=(l+r)>>1;
      if (check(mid)) l=mid+1;
      else r=mid-1;
   }
   cout << r << '\n';
   return 0;
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 53 ms 3420 KB Output is correct
2 Correct 35 ms 1368 KB Output is correct
3 Correct 32 ms 1368 KB Output is correct
4 Correct 5 ms 860 KB Output is correct
5 Correct 5 ms 976 KB Output is correct
6 Correct 5 ms 860 KB Output is correct
7 Correct 5 ms 1052 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 5 ms 872 KB Output is correct
10 Correct 5 ms 860 KB Output is correct
11 Correct 5 ms 860 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 5 ms 1000 KB Output is correct

Subtask #2
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 860 KB Output is correct
2 Correct 5 ms 1052 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 5 ms 872 KB Output is correct
5 Correct 5 ms 860 KB Output is correct
6 Correct 5 ms 860 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 5 ms 1000 KB Output is correct
9 Correct 5 ms 860 KB Output is correct
10 Correct 5 ms 860 KB Output is correct
11 Correct 5 ms 860 KB Output is correct
12 Correct 5 ms 860 KB Output is correct
13 Correct 5 ms 1116 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 4 ms 860 KB Output is correct
16 Correct 5 ms 1088 KB Output is correct
17 Correct 4 ms 860 KB Output is correct
18 Correct 5 ms 860 KB Output is correct
19 Correct 5 ms 1116 KB Output is correct
20 Correct 5 ms 860 KB Output is correct
21 Correct 5 ms 860 KB Output is correct
22 Correct 5 ms 860 KB Output is correct
23 Correct 7 ms 1112 KB Output is correct
24 Correct 5 ms 860 KB Output is correct
25 Correct 8 ms 860 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 5 ms 1112 KB Output is correct
28 Correct 5 ms 992 KB Output is correct
29 Correct 5 ms 1112 KB Output is correct
30 Correct 5 ms 1000 KB Output is correct
31 Correct 4 ms 1108 KB Output is correct

Subtask #3
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 860 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 5 ms 1112 KB Output is correct
4 Correct 5 ms 992 KB Output is correct
5 Correct 5 ms 1112 KB Output is correct
6 Correct 5 ms 1000 KB Output is correct
7 Correct 4 ms 1108 KB Output is correct
8 Correct 37 ms 1624 KB Output is correct
9 Correct 72 ms 4080 KB Output is correct
10 Correct 38 ms 1624 KB Output is correct
11 Correct 36 ms 1924 KB Output is correct
12 Correct 35 ms 1884 KB Output is correct
13 Correct 34 ms 1628 KB Output is correct

Subtask #4
34.0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 860 KB Output is correct
2 Correct 5 ms 860 KB Output is correct
3 Correct 5 ms 860 KB Output is correct
4 Correct 5 ms 860 KB Output is correct
5 Correct 5 ms 1116 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 4 ms 860 KB Output is correct
8 Correct 5 ms 1088 KB Output is correct
9 Correct 4 ms 860 KB Output is correct
10 Correct 5 ms 860 KB Output is correct
11 Correct 5 ms 1116 KB Output is correct
12 Correct 5 ms 860 KB Output is correct
13 Correct 5 ms 860 KB Output is correct
14 Correct 5 ms 860 KB Output is correct
15 Correct 7 ms 1112 KB Output is correct
16 Correct 5 ms 860 KB Output is correct
17 Correct 37 ms 1624 KB Output is correct
18 Correct 72 ms 4080 KB Output is correct
19 Correct 38 ms 1624 KB Output is correct
20 Correct 36 ms 1924 KB Output is correct
21 Correct 35 ms 1884 KB Output is correct
22 Correct 34 ms 1628 KB Output is correct
23 Correct 8 ms 860 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 5 ms 1112 KB Output is correct
26 Correct 5 ms 992 KB Output is correct
27 Correct 5 ms 1112 KB Output is correct
28 Correct 5 ms 1000 KB Output is correct
29 Correct 4 ms 1108 KB Output is correct
30 Correct 53 ms 3420 KB Output is correct
31 Correct 35 ms 1368 KB Output is correct
32 Correct 32 ms 1368 KB Output is correct
33 Correct 5 ms 860 KB Output is correct
34 Correct 5 ms 976 KB Output is correct
35 Correct 5 ms 860 KB Output is correct
36 Correct 5 ms 1052 KB Output is correct
37 Correct 1 ms 344 KB Output is correct
38 Correct 5 ms 872 KB Output is correct
39 Correct 5 ms 860 KB Output is correct
40 Correct 5 ms 860 KB Output is correct
41 Correct 1 ms 348 KB Output is correct
42 Correct 5 ms 1000 KB Output is correct
43 Correct 33 ms 1368 KB Output is correct
44 Correct 35 ms 1780 KB Output is correct
45 Correct 45 ms 2704 KB Output is correct
46 Correct 38 ms 1772 KB Output is correct
47 Correct 35 ms 1624 KB Output is correct
48 Correct 35 ms 1628 KB Output is correct
49 Correct 60 ms 4180 KB Output is correct
50 Correct 1 ms 348 KB Output is correct
51 Correct 0 ms 464 KB Output is correct
52 Correct 33 ms 1372 KB Output is correct
53 Correct 34 ms 1624 KB Output is correct
54 Correct 35 ms 1628 KB Output is correct
55 Correct 33 ms 1368 KB Output is correct
56 Correct 33 ms 1372 KB Output is correct
57 Correct 0 ms 348 KB Output is correct
58 Correct 5 ms 1116 KB Output is correct
59 Correct 6 ms 1112 KB Output is correct
60 Correct 5 ms 1116 KB Output is correct
61 Correct 71 ms 4532 KB Output is correct
62 Correct 61 ms 4444 KB Output is correct
63 Correct 1 ms 348 KB Output is correct