/* Square number - Write a function to check whether a given integer is a square number or not. Eg. 4 , 9 , 16 , 25 etc */

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

int  checksquare(int  n) ;

void main()
{
    int  n, flag ;
    clrscr();
    printf("Enter an integer: ") ;
    scanf("%d", &n) ;
    flag=checksquare(n) ;
    if(flag==1)
        printf("%d is a square number", n) ;
    else
        printf("%d is not a square number", n) ;
    getch();
}

int  checksquare(int  n)
{
    double  m;
    int  a;
    m=sqrt(n);
    a=m;
    if(n==a*a)
        return  1;
    else
        return  0;
}

/*
Output1:

Enter an integer: 16
16 is a square number

Output2:

Enter an integer: 8
8 is not a square number
*/