This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include<bits/stdc++.h>
using namespace std;
int n,m;
int head[500005];
int cnt = 0;
long long int a[500005];
int last[500005];
long long int siz[500005];
set<pair<long long int,int>> s;
struct edg
{
int to;
int next;
}edge[500005];
void add(int x,int y)
{
cnt++;
edge[cnt].to = y;
edge[cnt].next = head[x];
head[x] = cnt;
}
bool vis[500005];
int main()
{
cin>>n>>m;
for(int i=1;i<=n;i++)cin>>a[i];
for(int i=1;i<=m;i++)
{
int x,y;
cin>>x>>y;
add(x,y);
add(y,x);
}
for(int i=1;i<=n;i++)
{
for(int j=1;j<=n;j++)vis[j] = false;
s.clear();
vis[i] = true; // 以i開始,做bfs;
int cnt = 0;
pair<int,int> pp = make_pair(a[i],i);
s.insert(pp);
long long int nowval = 0;
//cout<<"i "<<i<<endl;
while(s.empty() == false)
{
auto it = (*s.begin());
int id = it.second;
vis[id] = true;
//cout<<"nowval: "<<nowval<<" "<<it.second<<endl;
if(nowval >= it.first || it.second == i)nowval += it.first;
else break;
cnt++;
s.erase(s.begin());
for(int j=head[id];j!=0;j=edge[j].next)
{
int to = edge[j].to;
if(vis[to] == true)continue;
pair<int,int> nw = make_pair(a[to],to);
s.insert(nw);
}
}
if(cnt >= n)last[i] = 1;
}
for(int i=1;i<=n;i++)cout<<last[i];
cout<<endl;
return 0;
}
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