oj.uz

Submission #244651

# Submission time Handle Problem Language Result Execution time Memory
244651 2020-07-04T13:36:57 Z kimbj0709 Toll (BOI17_toll) C++14
8 / 100
 3000 ms 6264 KB 
#include<bits/stdc++.h>
using namespace std;
#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:42:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(int j=0;j<dist.size();j++){
                     ~^~~~~~~~~~~~
toll.cpp:46:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(int j=0;j<top.size();j++){
                     ~^~~~~~~~~~~
toll.cpp:53:24: 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 3095 ms 6264 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 3091 ms 4600 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 1920 KB Output is correct
2 Correct 6 ms 1920 KB Output is correct
3 Correct 6 ms 1920 KB Output is correct
4 Correct 6 ms 1920 KB Output is correct
5 Correct 6 ms 1920 KB Output is correct
6 Correct 9 ms 1920 KB Output is correct
7 Correct 9 ms 1920 KB Output is correct
8 Correct 11 ms 2048 KB Output is correct
9 Correct 10 ms 2048 KB Output is correct
10 Correct 41 ms 3968 KB Output is correct
11 Correct 139 ms 4984 KB Output is correct
12 Correct 180 ms 5620 KB Output is correct
13 Correct 184 ms 5748 KB Output is correct
14 Correct 166 ms 5108 KB Output is correct
15 Correct 109 ms 3712 KB Output is correct
16 Correct 108 ms 3784 KB Output is correct

Subtask #4
0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 1920 KB Output is correct
2 Correct 6 ms 1920 KB Output is correct
3 Correct 6 ms 1920 KB Output is correct
4 Correct 6 ms 1920 KB Output is correct
5 Correct 6 ms 1920 KB Output is correct
6 Correct 9 ms 1920 KB Output is correct
7 Correct 9 ms 1920 KB Output is correct
8 Correct 11 ms 2048 KB Output is correct
9 Correct 10 ms 2048 KB Output is correct
10 Correct 41 ms 3968 KB Output is correct
11 Correct 139 ms 4984 KB Output is correct
12 Correct 180 ms 5620 KB Output is correct
13 Correct 184 ms 5748 KB Output is correct
14 Correct 166 ms 5108 KB Output is correct
15 Correct 109 ms 3712 KB Output is correct
16 Correct 108 ms 3784 KB Output is correct
17 Correct 2927 ms 5024 KB Output is correct
18 Correct 6 ms 1920 KB Output is correct
19 Correct 6 ms 1920 KB Output is correct
20 Correct 6 ms 1920 KB Output is correct
21 Correct 6 ms 1920 KB Output is correct
22 Correct 6 ms 1920 KB Output is correct
23 Correct 76 ms 2048 KB Output is correct
24 Correct 97 ms 2168 KB Output is correct
25 Correct 110 ms 2192 KB Output is correct
26 Correct 112 ms 2048 KB Output is correct
27 Correct 310 ms 4216 KB Output is correct
28 Execution timed out 3095 ms 5620 KB Time limit exceeded
29 Halted 0 ms 0 KB -

Subtask #5
0 / 44.0

# Verdict Execution time Memory Grader output
1 Execution timed out 3095 ms 6264 KB Time limit exceeded
2 Halted 0 ms 0 KB -