Are you beginner in problem solving?
Let's Solve 200 Beginner level problems with explanation video:
https://cutt.ly/200-Problems-interactive-coding-pdf
#include <stdio.h>
#include <math.h>
void main(){
int num, result;
printf("Enter a number: ");
scanf("%d",&num);
result = sqrt(num);
printf("Square root of %d = %d",num,result);
}