Help me in solving DONDRIVE problem

help
,
1

My issue

can you help me to give solution of this

My code

#include <stdio.h>

int main(void) {
	int m,n,p;
	scanf("%d %d",&m,&n);
	p=m-n;
	printf("%d",p);

}

Learning course: 500 difficulty rating
Problem Link: Donation Drive Practice Problem in - CodeChef

2 
#include <stdio.h>

int main(void) {
	// your code goes here
	int t;
	scanf("%d", &t);
	while(t--){
	    int m,n;
	    scanf("%d %d", &m, &n);
	    printf("%d\n", m-n);
	}
	
}

Your mistake was that you are not taking input for the cases you have to take, first, take the cases so that your code iterates that number of times to receive its input.