C program to check whether number is Perfect Square or not

 Given a Number is Perfect Square or Not

/*C program to check number is perfect square or not.*/
 
#include <stdio.h>
#include <math.h>
 
int main()
{
    int num;
    int iVar;
    float fVar;
 
    printf("Enter an integer number: ");
    scanf("%d",&num);
 
    fVar=sqrt((double)num);
    iVar=fVar;
 
    if(iVar==fVar)
        printf("%d is a perfect square.",num);
    else
        printf("%d is not a perfect square.",num);
     
    return 0;
}

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Output

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