Anyone please tell me why it's output giving wrong answer .

Question

// Write a program to calculate area and perimeter of rectangle , then calculate which one is greater .

#include<stdio.h>

int main()
{
int l, w, area , peri;

area = l * w ;
peri = 2 * (l + w) ;

printf("Width of Rectangle = \n");
scanf("%d", &l);

printf("length of Rectangle =\n");
scanf("%d", &w);

printf("area of rectangle is %d\n", area);

printf("perimeter of rectangle is %d\n", peri);

if (area > peri)
{
printf("Area is grater than perimeter") ;
}

else {
printf("perimeter is greater than area") ;
}

return 0;
}

Answer 1

Looks like you are trying to do a calculation without having assigned numbers to it?

Lines:
area = ...
peri = ...

Answer 2

How do you assign value to your parameters? Also, what's the answer that you get? Is the answer you get consistent or does it change?

Answer 3

Yeah. The code looks incomplete. All of them will end up having 0 as value, then your "area > peri" check will fail.