Answer Posted / swapnil chhajer

#include<stdio.h>
#include<math.h>
#include<stdlib.h>

int main()
{
int n;
printf("Enter the number : ");
scanf("%d",&n);

(n == (int)sqrt(n) * (int)sqrt(n)) ? printf("YES") :
printf("NO");

fflush(stdin);
getchar();
return 0;
}

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