oj.uz

Submission #603972

# Submission time Handle Problem Language Result Execution time Memory
603972 2022-07-24T14:20:29 Z Ahmadsm2005 Stranded Far From Home (BOI22_island) C++17
10 / 100
 1000 ms 21204 KB 
#include <bits/stdc++.h>
#define int long long
using namespace std;
int N,M,V[200001],X,Y,VIS[200001];
int R[200001];
vector<int>edges[200001];
void BFS(int X){
    for(int i = 0; i < edges[X].size(); i += 1){
        if(R[edges[X][i]] == 0 && V[edges[X][i]] == V[X]){
            R[X] = 0;
            return;
        }
        else if(R[edges[X][i]] == 1 && V[edges[X][i]] == V[X]){
            R[X] = 1;
            return;
        }
    }
    for(int i = 0; i < N; i += 1)VIS[i] = 0;
    priority_queue<pair<int,int>>Q;
    int CNT = V[X];
    Q.push({0,X});
    while(Q.size()){
        int F = Q.top().second,S = -Q.top().first;
        Q.pop();
        if(VIS[F])continue;
        VIS[F] = 1;
        if(S > CNT){
            R[X] = 0;
            return;
        }
        CNT += S;
        for(int i = 0; i < edges[F].size(); i += 1){
            Q.push({-V[edges[F][i]],edges[F][i]});
        }
    }
    R[X] = 1;
}
int32_t main()
{
    cin.tie(0),iostream::sync_with_stdio(0);
    cin>>N>>M;
    for(int i = 0; i < N; i += 1){
        cin>>V[i];
        R[i] = -1;
    }
    for(int i = 0; i < M; i += 1){
        cin>>X>>Y;
        edges[X - 1].push_back(Y - 1),edges[Y - 1].push_back(X - 1);
    }
    for(int i = 0; i < N; i += 1){
        BFS(i);
    }
    for(int i = 0; i < N; i += 1)cout<<R[i];
}

Compilation message

island.cpp: In function 'void BFS(long long int)':
island.cpp:8:22: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    8 |     for(int i = 0; i < edges[X].size(); i += 1){
      |                    ~~^~~~~~~~~~~~~~~~~
island.cpp:32:26: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   32 |         for(int i = 0; i < edges[F].size(); i += 1){
      |                        ~~^~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 2 ms 4948 KB Output is correct
4 Correct 340 ms 5160 KB Output is correct
5 Correct 273 ms 5196 KB Output is correct
6 Correct 173 ms 5152 KB Output is correct
7 Correct 340 ms 5156 KB Output is correct
8 Correct 262 ms 5144 KB Output is correct
9 Correct 306 ms 5204 KB Output is correct
10 Correct 152 ms 5128 KB Output is correct
11 Correct 164 ms 5136 KB Output is correct
12 Correct 159 ms 5156 KB Output is correct
13 Correct 4 ms 5204 KB Output is correct
14 Correct 141 ms 5140 KB Output is correct

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Execution timed out 1076 ms 21204 KB Time limit exceeded
4 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Execution timed out 1085 ms 15836 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #4
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 4948 KB Output is correct
2 Execution timed out 1093 ms 17216 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #5
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 2 ms 4948 KB Output is correct
4 Correct 340 ms 5160 KB Output is correct
5 Correct 273 ms 5196 KB Output is correct
6 Correct 173 ms 5152 KB Output is correct
7 Correct 340 ms 5156 KB Output is correct
8 Correct 262 ms 5144 KB Output is correct
9 Correct 306 ms 5204 KB Output is correct
10 Correct 152 ms 5128 KB Output is correct
11 Correct 164 ms 5136 KB Output is correct
12 Correct 159 ms 5156 KB Output is correct
13 Correct 4 ms 5204 KB Output is correct
14 Correct 141 ms 5140 KB Output is correct
15 Correct 3 ms 4948 KB Output is correct
16 Correct 3 ms 4948 KB Output is correct
17 Execution timed out 1076 ms 21204 KB Time limit exceeded
18 Halted 0 ms 0 KB -