Submission #968303

#	Time	Username	Problem	Language	Result	Execution time	Memory
968303		maxFedorchuk	Stranded Far From Home (BOI22_island)	C++17	10 / 100	1083 ms	19444 KiB

island

#include <bits/stdc++.h>
using namespace std;

const int MX=2e5+10;
vector < int > mas[MX];
int s[MX],use[MX];
int n,m;

bool chk(int vr)
{
    fill(use+1,use+1+n,0);

    priority_queue < pair < int , int > , vector < pair < int , int > > , greater < pair < int , int > > > q;
    for(auto u:mas[vr])
    {
        q.push({s[u],u});
    }

    long long sum=s[vr],k1=1;
    use[vr]=1;
    while(!q.empty())
    {
        int zar=q.top().second;
        q.pop();

        if(use[zar])
        {
            continue;
        }

        use[zar]=1;
        k1++;

        if(s[zar]>sum)
        {
            return 0;
        }
        sum+=s[zar];

        for(auto u:mas[zar])
        {
            q.push({s[u],u});
        }
    }

    return (k1==n);
}

int main()
{
    cin.tie(0);
    ios_base::sync_with_stdio(0);
    
    cin>>n>>m;

    for(int i=1;i<=n;i++)
    {
        cin>>s[i];
    }

    for(int i=1;i<=m;i++)
    {
        int a,b;
        cin>>a>>b;

        mas[a].push_back(b);
        mas[b].push_back(a);
    }

    for(int i=1;i<=n;i++)
    {
        cout<<chk(i);
    }
    cout<<"\n";

    return 0;
}

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