oj.uz

Submission #872672

# Submission time Handle Problem Language Result Execution time Memory
872672 2023-11-13T14:12:37 Z HossamHero7 Autobus (COCI22_autobus) C++14
55 / 70
 1000 ms 194384 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define endl '\n'
int edge[71][71];
vector<pair<int,int>> adj[71];
ll dp[71][71][70*70+1];
int K;
ll solve(int i,int j,int k){
    if(i == j) return 0;
    if(k == K) return 1e18;
    ll &ret = dp[i][j][k];
    if(~ret) return ret;
    ret = 1e18;
    for(auto [ch,c] : adj[i]) ret = min(ret,solve(ch,j,k+1)+c);
    return ret;
}
void solve(){
    int n,m;
    cin>>n>>m;
    for(int i=1;i<=n;i++) for(int j=1;j<=n;j++) edge[i][j] = 1e9;
    for(int i=0;i<m;i++){
        int a,b,c;
        cin>>a>>b>>c;
        edge[a][b] = min(edge[a][b] , c);
    }
    int cnt = 0;
    for(int i=1;i<=n;i++){
        for(int j=1;j<=n;j++) {
            if(edge[i][j] != 1e9) adj[i].push_back({j,edge[i][j]}) , cnt++;
        }
    }
    int q;
    cin>>K>>q;
    K = min(K,cnt);
    memset(dp,-1,sizeof(dp));
    while(q--){
        int a,b;
        cin>>a>>b;
        ll ans = solve(a,b,0);
        cout<<(ans == 1e18 ? -1 : ans)<<endl;
    }
}
int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);      cout.tie(0);
    int t=1;
    //cin>>t;
    while(t--){
        solve();
    }
    return 0;
}

Compilation message

Main.cpp: In function 'll solve(int, int, int)':
Main.cpp:15:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   15 |     for(auto [ch,c] : adj[i]) ret = min(ret,solve(ch,j,k+1)+c);
      |              ^

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 193616 KB Output is correct
2 Correct 22 ms 193620 KB Output is correct
3 Correct 22 ms 193704 KB Output is correct
4 Correct 23 ms 193620 KB Output is correct
5 Correct 22 ms 193628 KB Output is correct
6 Correct 22 ms 193624 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 193884 KB Output is correct
2 Correct 25 ms 193760 KB Output is correct
3 Correct 24 ms 193900 KB Output is correct
4 Correct 24 ms 193884 KB Output is correct
5 Correct 27 ms 193708 KB Output is correct
6 Correct 26 ms 193888 KB Output is correct
7 Correct 28 ms 193876 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 193616 KB Output is correct
2 Correct 22 ms 193620 KB Output is correct
3 Correct 22 ms 193704 KB Output is correct
4 Correct 23 ms 193620 KB Output is correct
5 Correct 22 ms 193628 KB Output is correct
6 Correct 22 ms 193624 KB Output is correct
7 Correct 28 ms 193880 KB Output is correct
8 Correct 36 ms 193868 KB Output is correct
9 Correct 25 ms 193880 KB Output is correct
10 Correct 39 ms 193844 KB Output is correct
11 Correct 35 ms 193880 KB Output is correct
12 Correct 71 ms 193876 KB Output is correct
13 Correct 96 ms 193872 KB Output is correct
14 Correct 107 ms 193872 KB Output is correct
15 Correct 180 ms 193924 KB Output is correct
16 Correct 121 ms 193752 KB Output is correct
17 Correct 103 ms 193740 KB Output is correct
18 Correct 116 ms 193768 KB Output is correct
19 Correct 199 ms 193936 KB Output is correct
20 Correct 163 ms 193872 KB Output is correct
21 Correct 94 ms 193744 KB Output is correct
22 Correct 123 ms 193740 KB Output is correct
23 Correct 116 ms 193740 KB Output is correct
24 Correct 163 ms 193740 KB Output is correct
25 Correct 99 ms 193876 KB Output is correct
26 Correct 150 ms 193752 KB Output is correct
27 Correct 126 ms 193816 KB Output is correct
28 Correct 126 ms 193872 KB Output is correct
29 Correct 97 ms 193876 KB Output is correct
30 Correct 112 ms 193936 KB Output is correct
31 Correct 146 ms 193752 KB Output is correct
32 Correct 193 ms 193948 KB Output is correct

Subtask #4
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 193616 KB Output is correct
2 Correct 22 ms 193620 KB Output is correct
3 Correct 22 ms 193704 KB Output is correct
4 Correct 23 ms 193620 KB Output is correct
5 Correct 22 ms 193628 KB Output is correct
6 Correct 22 ms 193624 KB Output is correct
7 Correct 24 ms 193884 KB Output is correct
8 Correct 25 ms 193760 KB Output is correct
9 Correct 24 ms 193900 KB Output is correct
10 Correct 24 ms 193884 KB Output is correct
11 Correct 27 ms 193708 KB Output is correct
12 Correct 26 ms 193888 KB Output is correct
13 Correct 28 ms 193876 KB Output is correct
14 Correct 28 ms 193880 KB Output is correct
15 Correct 36 ms 193868 KB Output is correct
16 Correct 25 ms 193880 KB Output is correct
17 Correct 39 ms 193844 KB Output is correct
18 Correct 35 ms 193880 KB Output is correct
19 Correct 71 ms 193876 KB Output is correct
20 Correct 96 ms 193872 KB Output is correct
21 Correct 107 ms 193872 KB Output is correct
22 Correct 180 ms 193924 KB Output is correct
23 Correct 121 ms 193752 KB Output is correct
24 Correct 103 ms 193740 KB Output is correct
25 Correct 116 ms 193768 KB Output is correct
26 Correct 199 ms 193936 KB Output is correct
27 Correct 163 ms 193872 KB Output is correct
28 Correct 94 ms 193744 KB Output is correct
29 Correct 123 ms 193740 KB Output is correct
30 Correct 116 ms 193740 KB Output is correct
31 Correct 163 ms 193740 KB Output is correct
32 Correct 99 ms 193876 KB Output is correct
33 Correct 150 ms 193752 KB Output is correct
34 Correct 126 ms 193816 KB Output is correct
35 Correct 126 ms 193872 KB Output is correct
36 Correct 97 ms 193876 KB Output is correct
37 Correct 112 ms 193936 KB Output is correct
38 Correct 146 ms 193752 KB Output is correct
39 Correct 193 ms 193948 KB Output is correct
40 Correct 27 ms 193884 KB Output is correct
41 Correct 91 ms 194152 KB Output is correct
42 Correct 27 ms 193880 KB Output is correct
43 Correct 409 ms 193940 KB Output is correct
44 Correct 34 ms 193748 KB Output is correct
45 Execution timed out 1027 ms 194384 KB Time limit exceeded
46 Halted 0 ms 0 KB -