oj.uz

Submission #244664

# Submission time Handle Problem Language Result Execution time Memory
244664 2020-07-04T13:45:08 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(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]]){
                dist[kk.first] = min(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 3046 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 3075 ms 4588 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 7 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 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 36 ms 3968 KB Output is correct
11 Correct 155 ms 5024 KB Output is correct
12 Correct 210 ms 5620 KB Output is correct
13 Correct 196 ms 5876 KB Output is correct
14 Correct 161 ms 5236 KB Output is correct
15 Correct 97 ms 3712 KB Output is correct
16 Correct 87 ms 3708 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 7 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 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 36 ms 3968 KB Output is correct
11 Correct 155 ms 5024 KB Output is correct
12 Correct 210 ms 5620 KB Output is correct
13 Correct 196 ms 5876 KB Output is correct
14 Correct 161 ms 5236 KB Output is correct
15 Correct 97 ms 3712 KB Output is correct
16 Correct 87 ms 3708 KB Output is correct
17 Correct 2953 ms 5280 KB Output is correct
18 Correct 6 ms 1920 KB Output is correct
19 Correct 5 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 75 ms 1920 KB Output is correct
24 Correct 98 ms 2040 KB Output is correct
25 Correct 120 ms 2048 KB Output is correct
26 Correct 113 ms 2048 KB Output is correct
27 Correct 269 ms 4112 KB Output is correct
28 Execution timed out 3089 ms 5876 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 3046 ms 6264 KB Time limit exceeded
2 Halted 0 ms 0 KB -