oj.uz

Submission #244656

# Submission time Handle Problem Language Result Execution time Memory
244656 2020-07-04T13:41:11 Z kimbj0709 Toll (BOI17_toll) C++14
8 / 100
 3000 ms 6336 KB 
#pragma optimize("unroll-loops")
#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:1:0: warning: ignoring #pragma optimize  [-Wunknown-pragmas]
 #pragma optimize("unroll-loops")
 
toll.cpp: In function 'int32_t main()':
toll.cpp:39:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(int j=0;j<dist.size();j++){
                     ~^~~~~~~~~~~~
toll.cpp:43:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(int j=0;j<top.size();j++){
                     ~^~~~~~~~~~~
toll.cpp:50:24: 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 3078 ms 6336 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 3077 ms 4596 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 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 3960 KB Output is correct
11 Correct 142 ms 4984 KB Output is correct
12 Correct 171 ms 5492 KB Output is correct
13 Correct 192 ms 5772 KB Output is correct
14 Correct 164 ms 5108 KB Output is correct
15 Correct 108 ms 3712 KB Output is correct
16 Correct 101 ms 3712 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 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 3960 KB Output is correct
11 Correct 142 ms 4984 KB Output is correct
12 Correct 171 ms 5492 KB Output is correct
13 Correct 192 ms 5772 KB Output is correct
14 Correct 164 ms 5108 KB Output is correct
15 Correct 108 ms 3712 KB Output is correct
16 Correct 101 ms 3712 KB Output is correct
17 Correct 2841 ms 5240 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 75 ms 1920 KB Output is correct
24 Correct 96 ms 2040 KB Output is correct
25 Correct 113 ms 2048 KB Output is correct
26 Correct 105 ms 2048 KB Output is correct
27 Correct 308 ms 4032 KB Output is correct
28 Execution timed out 3088 ms 5748 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 3078 ms 6336 KB Time limit exceeded
2 Halted 0 ms 0 KB -