18 lines
300 B
C++
18 lines
300 B
C++
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#include <iostream>
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using namespace std;
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bool pan[1000000001]={0};
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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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pan[now]=1;
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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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cout<<pan[u]<<endl;
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}
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}
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