oj.uz

Submission #244658

# Submission time Handle Problem Language Result Execution time Memory
244658 2020-07-04T13:42:23 Z kimbj0709 Toll (BOI17_toll) C++11
8 / 100
 3000 ms 6232 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(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:38:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(int j=0;j<dist.size();j++){
                     ~^~~~~~~~~~~~
toll.cpp:42:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(int j=0;j<top.size();j++){
                     ~^~~~~~~~~~~
toll.cpp:49:24: 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 3098 ms 6232 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 3090 ms 4576 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 7 ms 1920 KB Output is correct
6 Correct 10 ms 1920 KB Output is correct
7 Correct 9 ms 2048 KB Output is correct
8 Correct 11 ms 2048 KB Output is correct
9 Correct 11 ms 2048 KB Output is correct
10 Correct 35 ms 3968 KB Output is correct
11 Correct 176 ms 5112 KB Output is correct
12 Correct 261 ms 5492 KB Output is correct
13 Correct 198 ms 5748 KB Output is correct
14 Correct 184 ms 5112 KB Output is correct
15 Correct 106 ms 3704 KB Output is correct
16 Correct 106 ms 3788 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 7 ms 1920 KB Output is correct
6 Correct 10 ms 1920 KB Output is correct
7 Correct 9 ms 2048 KB Output is correct
8 Correct 11 ms 2048 KB Output is correct
9 Correct 11 ms 2048 KB Output is correct
10 Correct 35 ms 3968 KB Output is correct
11 Correct 176 ms 5112 KB Output is correct
12 Correct 261 ms 5492 KB Output is correct
13 Correct 198 ms 5748 KB Output is correct
14 Correct 184 ms 5112 KB Output is correct
15 Correct 106 ms 3704 KB Output is correct
16 Correct 106 ms 3788 KB Output is correct
17 Correct 2872 ms 5188 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 7 ms 1920 KB Output is correct
23 Correct 74 ms 1920 KB Output is correct
24 Correct 203 ms 2048 KB Output is correct
25 Correct 114 ms 2048 KB Output is correct
26 Correct 108 ms 2048 KB Output is correct
27 Correct 286 ms 3968 KB Output is correct
28 Execution timed out 3071 ms 5804 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 3098 ms 6232 KB Time limit exceeded
2 Halted 0 ms 0 KB -