oj.uz

Submission #374242

# Submission time Handle Problem Language Result Execution time Memory
374242 2021-03-07T00:23:41 Z ivan_tudor Travelling Merchant (APIO17_merchant) C++14
100 / 100
 154 ms 4332 KB 
#include<bits/stdc++.h>
using namespace std;
const long long N = 105;
long long mind[N][N];
long long maxp[N][N];
long long newc[N][N];
long long b[N][1005];
long long s[N][1005];
long long n;
bool check(long long R){

  for(long long i =1 ; i<=n;i++)
    for(long long j =1 ; j<=n;j++){
      newc[i][j] =  maxp[i][j] -  R * mind[i][j];
    }
  for(long long k = 1; k <=n;k++){
    for(long long i = 1; i<=n;i++)
      for(long long j =1 ; j<=n;j++){
        if(newc[i][k] + newc[k][j] > newc[i][j])
          newc[i][j] = newc[i][k] + newc[k][j];
      }
  }
  for(long long i =1 ; i<=n;i++){
    if(newc[i][i] >=0)
      return true;
  }
  return false;
}
int main()
{
  //freopen(".in","r",stdin);
  ios::sync_with_stdio(false);
  cin.tie(0),cout.tie(0);
  long long m, k;
  cin>>n>>m>>k;
  for(long long i=1;i<=n;i++){
    for(long long j = 1; j<=k;j++)
      cin>>b[i][j]>>s[i][j];
  }
  for(long long i = 1; i<=n;i++)
    for(long long j = 1; j<=n;j++)
      mind[i][j] = INT_MAX;
  for(long long i = 1; i<=m;i++){
    long long x, y, d;
    cin>>x>>y>>d;
    mind[x][y] = d;
  }
  for(long long k = 1 ; k<=n;k++){
    for(long long i =1 ; i<=n;i++)
      for(long long j =1 ; j<=n;j++){
        if(mind[i][j] > mind[i][k] + mind[k][j])
          mind[i][j] = mind[i][k] + mind[k][j];
      }
  }
  for(long long i = 1; i<=n;i++){
    for(long long j = 1; j<=n;j++){
      maxp[i][j] = 0;
      for(long long l = 1; l<=k;l++){
        if(b[i][l] == -1 || s[j][l] == -1)
          continue;
        maxp[i][j] = max(maxp[i][j], s[j][l] - b[i][l]);
      }
    }
  }
  long long pas = 0;
  for(long long p2 = 1LL<<30; p2 > 0; p2/=2){
    if(check(pas + p2))
      pas +=p2;
  }
  cout<<pas;
  return 0;
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 67 ms 2156 KB Output is correct
2 Correct 37 ms 1388 KB Output is correct
3 Correct 37 ms 1388 KB Output is correct
4 Correct 6 ms 876 KB Output is correct
5 Correct 6 ms 876 KB Output is correct
6 Correct 6 ms 876 KB Output is correct
7 Correct 7 ms 876 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 6 ms 876 KB Output is correct
10 Correct 6 ms 876 KB Output is correct
11 Correct 6 ms 876 KB Output is correct
12 Correct 1 ms 492 KB Output is correct
13 Correct 7 ms 1004 KB Output is correct

Subtask #2
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 876 KB Output is correct
2 Correct 7 ms 876 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 6 ms 876 KB Output is correct
5 Correct 6 ms 876 KB Output is correct
6 Correct 6 ms 876 KB Output is correct
7 Correct 1 ms 492 KB Output is correct
8 Correct 7 ms 1004 KB Output is correct
9 Correct 7 ms 876 KB Output is correct
10 Correct 6 ms 876 KB Output is correct
11 Correct 7 ms 876 KB Output is correct
12 Correct 6 ms 876 KB Output is correct
13 Correct 12 ms 876 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 6 ms 876 KB Output is correct
16 Correct 7 ms 876 KB Output is correct
17 Correct 6 ms 876 KB Output is correct
18 Correct 7 ms 876 KB Output is correct
19 Correct 9 ms 1004 KB Output is correct
20 Correct 8 ms 1004 KB Output is correct
21 Correct 6 ms 876 KB Output is correct
22 Correct 8 ms 876 KB Output is correct
23 Correct 9 ms 1004 KB Output is correct
24 Correct 6 ms 876 KB Output is correct
25 Correct 15 ms 876 KB Output is correct
26 Correct 1 ms 364 KB Output is correct
27 Correct 15 ms 876 KB Output is correct
28 Correct 10 ms 876 KB Output is correct
29 Correct 9 ms 1004 KB Output is correct
30 Correct 7 ms 876 KB Output is correct
31 Correct 7 ms 876 KB Output is correct

Subtask #3
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 876 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 15 ms 876 KB Output is correct
4 Correct 10 ms 876 KB Output is correct
5 Correct 9 ms 1004 KB Output is correct
6 Correct 7 ms 876 KB Output is correct
7 Correct 7 ms 876 KB Output is correct
8 Correct 97 ms 1516 KB Output is correct
9 Correct 154 ms 2300 KB Output is correct
10 Correct 77 ms 1516 KB Output is correct
11 Correct 102 ms 1516 KB Output is correct
12 Correct 101 ms 1516 KB Output is correct
13 Correct 52 ms 1516 KB Output is correct

Subtask #4
34.0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 876 KB Output is correct
2 Correct 6 ms 876 KB Output is correct
3 Correct 7 ms 876 KB Output is correct
4 Correct 6 ms 876 KB Output is correct
5 Correct 12 ms 876 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 6 ms 876 KB Output is correct
8 Correct 7 ms 876 KB Output is correct
9 Correct 6 ms 876 KB Output is correct
10 Correct 7 ms 876 KB Output is correct
11 Correct 9 ms 1004 KB Output is correct
12 Correct 8 ms 1004 KB Output is correct
13 Correct 6 ms 876 KB Output is correct
14 Correct 8 ms 876 KB Output is correct
15 Correct 9 ms 1004 KB Output is correct
16 Correct 6 ms 876 KB Output is correct
17 Correct 97 ms 1516 KB Output is correct
18 Correct 154 ms 2300 KB Output is correct
19 Correct 77 ms 1516 KB Output is correct
20 Correct 102 ms 1516 KB Output is correct
21 Correct 101 ms 1516 KB Output is correct
22 Correct 52 ms 1516 KB Output is correct
23 Correct 15 ms 876 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 15 ms 876 KB Output is correct
26 Correct 10 ms 876 KB Output is correct
27 Correct 9 ms 1004 KB Output is correct
28 Correct 7 ms 876 KB Output is correct
29 Correct 7 ms 876 KB Output is correct
30 Correct 67 ms 2156 KB Output is correct
31 Correct 37 ms 1388 KB Output is correct
32 Correct 37 ms 1388 KB Output is correct
33 Correct 6 ms 876 KB Output is correct
34 Correct 6 ms 876 KB Output is correct
35 Correct 6 ms 876 KB Output is correct
36 Correct 7 ms 876 KB Output is correct
37 Correct 1 ms 364 KB Output is correct
38 Correct 6 ms 876 KB Output is correct
39 Correct 6 ms 876 KB Output is correct
40 Correct 6 ms 876 KB Output is correct
41 Correct 1 ms 492 KB Output is correct
42 Correct 7 ms 1004 KB Output is correct
43 Correct 43 ms 1388 KB Output is correct
44 Correct 43 ms 1644 KB Output is correct
45 Correct 60 ms 2668 KB Output is correct
46 Correct 46 ms 1684 KB Output is correct
47 Correct 41 ms 1644 KB Output is correct
48 Correct 41 ms 1696 KB Output is correct
49 Correct 126 ms 4056 KB Output is correct
50 Correct 1 ms 492 KB Output is correct
51 Correct 1 ms 492 KB Output is correct
52 Correct 43 ms 1388 KB Output is correct
53 Correct 39 ms 1644 KB Output is correct
54 Correct 40 ms 1536 KB Output is correct
55 Correct 43 ms 1516 KB Output is correct
56 Correct 38 ms 1388 KB Output is correct
57 Correct 1 ms 364 KB Output is correct
58 Correct 10 ms 1004 KB Output is correct
59 Correct 11 ms 1004 KB Output is correct
60 Correct 9 ms 1004 KB Output is correct
61 Correct 115 ms 4204 KB Output is correct
62 Correct 115 ms 4332 KB Output is correct
63 Correct 1 ms 364 KB Output is correct