Submission #722883

#	Time	Username	Problem	Language	Result	Execution time	Memory
722883		MDSPro	Stranded Far From Home (BOI22_island)	C++17	10 / 100	1078 ms	15500 KiB

island

#include "bits/stdc++.h"

using namespace std;

int main(){
    int n,m; cin >> n >> m;
    vector<long long> a(n+1); for(int i = 1; i <= n; ++i) cin >> a[i];
    
    vector<vector<int>> g(n+1);
    for(int i = 0; i < m; ++i){
        int x,y; cin >> x >> y;
        g[x].emplace_back(y);
        g[y].emplace_back(x);
    }

    vector<int> vis(n+1,0);
    for(int i = 1; i <= n; ++i){
        set<pair<long long,int>> st;
        st.insert({0,i}); vis[i] = i;

        long long cur = 0;
        while(!st.empty()){
            auto [cnt,x] = *st.begin();
            if(cnt > cur) break;
            st.erase(st.begin());
            cur += a[x];
            for(int z: g[x]){
                if(vis[z] != i) {
                    vis[z] = i;
                    st.insert({a[z],z});
                }
            }
        }

        if(st.empty()) cout << 1;
        else cout << 0;
    }
}

• Subtask 1: 10 / 10
• Subtask 2: 0 / 10
• Subtask 3: 0 / 15
• Subtask 4: 0 / 30
• Subtask 5: 0 / 35