OJ Board

Please tell me why this code is getting WA?

#include <stdio.h>
#include <string.h>

int main ()
{
long np, i, money, person, divide, c, flag = 0;
char giver [20], receiver [20];

while (scanf ("%ld", &np) != EOF) {

struct friends {
int spend;
int receive;
char name [20];
} A [12] = {0 ...