C Program To Find Absolute Value of a Number

#include<stdio.h>  
#include<stdlib.h>  
  
int main()  
{  
    int num;  
  
    printf("Enter a positive or negative number :- ");  
    scanf("%d", &num);  
  
    printf("Absolute Value of %d is %d\n", num, abs(num));  
  
    return 0;  
} 

#include<stdio.h>  
#include<stdlib.h>  
  
int main()  
{  
    int num, aNum;  
  
    printf("Enter a positive or negative number :- ");  
    scanf("%d", &num);
    if(num<0){
        aNum = (-1)*num;
        printf("Absolute Value of %d is %d\n", num, aNum); 
    }else{
        printf("Absolute Value of %d is %d\n", num, num); 
    }
  
    return 0;  
}