oj.uz

Submission #244659

# Submission time Handle Problem Language Result Execution time Memory
244659 2020-07-04T13:42:34 Z kimbj0709 Toll (BOI17_toll) C++
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 3091 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 3074 ms 4580 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 7 ms 1920 KB Output is correct
5 Correct 7 ms 1920 KB Output is correct
6 Correct 8 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 35 ms 3968 KB Output is correct
11 Correct 143 ms 4992 KB Output is correct
12 Correct 174 ms 5620 KB Output is correct
13 Correct 189 ms 5876 KB Output is correct
14 Correct 175 ms 5112 KB Output is correct
15 Correct 114 ms 3708 KB Output is correct
16 Correct 115 ms 3704 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 7 ms 1920 KB Output is correct
5 Correct 7 ms 1920 KB Output is correct
6 Correct 8 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 35 ms 3968 KB Output is correct
11 Correct 143 ms 4992 KB Output is correct
12 Correct 174 ms 5620 KB Output is correct
13 Correct 189 ms 5876 KB Output is correct
14 Correct 175 ms 5112 KB Output is correct
15 Correct 114 ms 3708 KB Output is correct
16 Correct 115 ms 3704 KB Output is correct
17 Execution timed out 3031 ms 5368 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 3091 ms 6232 KB Time limit exceeded
2 Halted 0 ms 0 KB -