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- #include<iostream>
- using namespace std;
- int main()
- {
- long long int n, i, j, arr, p[100005];
- cin >> n;
- for(i=0; i<n; i++)
- {
- cin >> arr;
- for(j=1; j<arr; j++){
- if(arr%2!=0 && arr==j*j)
- {
- p[i]= 5;
- }
- else if(arr==4)
- {
- p[i]=5;
- }
- }
- }
- for(j=0; j<n; j++)
- {
- if(p[j]==5)
- {
- cout << "YES" << endl;
- }
- else
- {
- cout << "NO" << endl;
- }
- }
- return 0;
- }
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