24 lines
413 B
C++
24 lines
413 B
C++
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#include <iostream>
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#include<set>
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using namespace std;
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set<int> cun;
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int main()
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{
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int n,now=1;
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for(int i=0;now<=1000000000;i++){
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now+=i;
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cun.insert(now);
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}
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cin>>n;
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for(int i=1;i<=n;i++){
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int u;
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cin>>u;
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if(cun.find(u)==cun.end()){
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cout<<"0"<<endl;
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}else{
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cout<<"1"<<endl;
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}
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}
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}
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