Help me in solving RCPITCP214 problem

My issue

What is error

My code


#include <stdio.h>

struct Rectangle {
    int length;
    int width;
};

int main() {
    int t;
    scanf("%d", &t);

    for (int i = 0; i < t; i++) {
        struct Rectangle rect;
        scanf("%d %d", &rect.length, &rect.width);

        int area = rect.length * rect.width;
        int perimeter = 2 * (rect.length + rect.width);

        printf("%d\n%d", area, perimeter);
    }

    return 0;
}

Learning course: Learn C Programming
Problem Link: https://www.codechef.com/learn/course/rcpit-programming-c/RCPITLPC33/problems/RCPITCP214