OJ Board

I've got AC~thank you very much~

but I am still wondering where the bug is~hahahaha

store 8 digits in one cell... thank you very much for attentions
[c]
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#define MAX_LEN 135001
#define CARRY 100000000

long a[MAX_LEN], b[MAX_LEN];
long len;
long m;
int casen, casei;

int main()
{
long sum1, sum2;
long x1, x2;
long i, j ...