oj.uz

Submission #244650

# Submission time Handle Problem Language Result Execution time Memory
244650 2020-07-04T13:36:11 Z kimbj0709 Toll (BOI17_toll) C++14
8 / 100
 3000 ms 7924 KB 
#include<bits/stdc++.h>
using namespace std;
#define int long long
#define maxn 50050
#define f first
#define s second
vector<vector<pair<int,int> > > adj(maxn);
vector<int> top;
vector<int> visited(maxn,0);
void topsort(int node){
    visited[node] = 1;
    for(auto k:adj[node]){
        if(visited[k.f]==1){
            continue;
        }
        topsort(k.f);
    }
    top.push_back(node);
}
int32_t main(){
    ios::sync_with_stdio(0);
    cin.tie(0);cout.tie(0);
    int k,no_of_vertex,no_of_edge,no_of_query;
    int input1,input2,input3;
    cin >> k >> no_of_vertex >> no_of_edge >> no_of_query;
    for(int i=0;i<no_of_edge;i++){
        cin >> input1 >> input2 >> input3;
        adj[input1].push_back({input2,input3});
    }
    for(int i=0;i<no_of_vertex;i++){
        if(visited[i]==0){
            topsort(i);
        }
    }
    reverse(top.begin(),top.end());
    vector<int> dist(maxn,INT_MAX);
    /*for(auto kk:top){
        cout << kk << " ";
    }
    cout << "--\n";*/
    for(int i=0;i<no_of_query;i++){
        cin >> input1 >> input2;
        for(int j=0;j<dist.size();j++){
            dist[j] = INT_MAX;
        }
        int pos = -1;
        for(int j=0;j<top.size();j++){
            if(top[j]==input1){
                pos = j;
                break;
            }
        }
        dist[input1] = 0;
        for(int j=pos;j<top.size();j++){
            if(dist[top[j]]==INT_MAX){
                continue;
            }
            for(auto kk:adj[top[j]]){
                if(dist[kk.first]>dist[top[j]]+kk.second){
                    dist[kk.first] = dist[top[j]]+kk.second;
                }
            }
        }

        if(dist[input2]==INT_MAX){
            cout << -1 << "\n";
        }
        else{
            cout << dist[input2] << "\n";
        }
    }


}

Compilation message

toll.cpp: In function 'int32_t main()':
toll.cpp:43:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(int j=0;j<dist.size();j++){
                     ~^~~~~~~~~~~~
toll.cpp:47:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(int j=0;j<top.size();j++){
                     ~^~~~~~~~~~~
toll.cpp:54:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(int j=pos;j<top.size();j++){
                       ~^~~~~~~~~~~

Subtask #1
0 / 7.0

# Verdict Execution time Memory Grader output
1 Execution timed out 3076 ms 6916 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 3084 ms 6132 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 2304 KB Output is correct
2 Correct 6 ms 2304 KB Output is correct
3 Correct 7 ms 2432 KB Output is correct
4 Correct 6 ms 2304 KB Output is correct
5 Correct 6 ms 2304 KB Output is correct
6 Correct 10 ms 2304 KB Output is correct
7 Correct 12 ms 2432 KB Output is correct
8 Correct 13 ms 2560 KB Output is correct
9 Correct 13 ms 2432 KB Output is correct
10 Correct 44 ms 4604 KB Output is correct
11 Correct 149 ms 6516 KB Output is correct
12 Correct 205 ms 7536 KB Output is correct
13 Correct 197 ms 7924 KB Output is correct
14 Correct 181 ms 6776 KB Output is correct
15 Correct 110 ms 5108 KB Output is correct
16 Correct 109 ms 4984 KB Output is correct

Subtask #4
0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 2304 KB Output is correct
2 Correct 6 ms 2304 KB Output is correct
3 Correct 7 ms 2432 KB Output is correct
4 Correct 6 ms 2304 KB Output is correct
5 Correct 6 ms 2304 KB Output is correct
6 Correct 10 ms 2304 KB Output is correct
7 Correct 12 ms 2432 KB Output is correct
8 Correct 13 ms 2560 KB Output is correct
9 Correct 13 ms 2432 KB Output is correct
10 Correct 44 ms 4604 KB Output is correct
11 Correct 149 ms 6516 KB Output is correct
12 Correct 205 ms 7536 KB Output is correct
13 Correct 197 ms 7924 KB Output is correct
14 Correct 181 ms 6776 KB Output is correct
15 Correct 110 ms 5108 KB Output is correct
16 Correct 109 ms 4984 KB Output is correct
17 Execution timed out 3069 ms 6572 KB Time limit exceeded
18 Halted 0 ms 0 KB -

Subtask #5
0 / 44.0

# Verdict Execution time Memory Grader output
1 Execution timed out 3076 ms 6916 KB Time limit exceeded
2 Halted 0 ms 0 KB -