to check number is perfect square or not

/*gowrikausalya.blogspot.com*/
/*c-program to find whether the given number is perfect square or not*/

#include<stdio.h>
#include<conio.h>
#include<math.h>/*sqrt()*/
main()
{
    int m, n;
    float p;
    printf("Enter any integer : \n");
    scanf("%d", &n);
    p =sqrt(n);
    m=p;
    if(p == m)
         printf("%d is a perfect square",n);
    else
        printf("%d is not a perfect square",n);
    getch();
}

this program will display the output as:-

Enter any integer :

144

144 is a perfect square

Enter any integer :

133

133 is not a perfect square

the output screen will be :-