oj.uz

Submission #603678

# Submission time Handle Problem Language Result Execution time Memory
603678 2022-07-24T09:36:23 Z MrDeboo Stranded Far From Home (BOI22_island) C++17
10 / 100
 1000 ms 22892 KB 
#include <bits/stdc++.h>
#define int long long
using namespace std;
signed main(){
    int n,m;
    cin>>n>>m;
    int val[n+1];
    for(int i=1;i<=n;i++)cin>>val[i];
    vector<int>vct[n+1];
    while(m--){
        int x,y;
        cin>>x>>y;
        vct[x].push_back(y);
        vct[y].push_back(x);
    }
    string s(n+1,'1');
    vector<bool>done(n+1);
    srand(43654634);
    vector<pair<int,int>>vv,V;
    for(int i=1;i<=n;i++)V.push_back({val[i],i});
    for(auto &[ii,i]:V){
        if(done[i])continue;
        vector<int>v;
        vector<bool>vis(n+1);
        priority_queue<pair<int,int>,vector<pair<int,int>>,greater<pair<int,int>>>pq;
        pq.push({0,i});
        int tot=0;
        bool bl=1;
        while(pq.size()){
            int a=pq.top().second,b=pq.top().first;
            pq.pop();
            if(vis[a])continue;
            vis[a]=1;
            if(b>tot)break;
            v.push_back(a);
            tot+=val[a];
            for(auto &w:vct[a]){
                pq.push({val[w],w});
            }
        }
        if(v.size()==n){
            deque<pair<int,int>>dq={{i,val[i]}};
            for(auto &w:v)vis[w]=0;
            while(dq.size()){
                int a=dq.front().first,b=dq.front().second;
                dq.pop_front();
                if(vis[a])continue;
                vis[a]=1;
                if(val[a]>=b){
                    done[a]=1;
                    s[a]='1';
                    b=val[a];
                }
                for(auto &w:vct[a]){
                    dq.push_back({w,b});
                }
            }
        }else{
            for(auto &i:v){
                done[i]=1;
                s[i]='0';
            }
        }
    }
    cout<<s.substr(1,n);
}

Compilation message

island.cpp: In function 'int main()':
island.cpp:41:20: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   41 |         if(v.size()==n){
      |            ~~~~~~~~^~~
island.cpp:28:14: warning: unused variable 'bl' [-Wunused-variable]
   28 |         bool bl=1;
      |              ^~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 102 ms 512 KB Output is correct
5 Correct 123 ms 492 KB Output is correct
6 Correct 3 ms 468 KB Output is correct
7 Correct 137 ms 508 KB Output is correct
8 Correct 72 ms 476 KB Output is correct
9 Correct 2 ms 468 KB Output is correct
10 Correct 112 ms 468 KB Output is correct
11 Correct 101 ms 468 KB Output is correct
12 Correct 189 ms 512 KB Output is correct
13 Correct 2 ms 496 KB Output is correct
14 Correct 7 ms 468 KB Output is correct

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Execution timed out 1076 ms 22892 KB Time limit exceeded
4 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Execution timed out 1084 ms 19916 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #4
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Execution timed out 1069 ms 20988 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #5
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 102 ms 512 KB Output is correct
5 Correct 123 ms 492 KB Output is correct
6 Correct 3 ms 468 KB Output is correct
7 Correct 137 ms 508 KB Output is correct
8 Correct 72 ms 476 KB Output is correct
9 Correct 2 ms 468 KB Output is correct
10 Correct 112 ms 468 KB Output is correct
11 Correct 101 ms 468 KB Output is correct
12 Correct 189 ms 512 KB Output is correct
13 Correct 2 ms 496 KB Output is correct
14 Correct 7 ms 468 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Execution timed out 1076 ms 22892 KB Time limit exceeded
18 Halted 0 ms 0 KB -