HDU 1212 Big Number

该题就从最高位取余，余数再乘以10就可以了；

#include<stdio.h>
#include<stdlib.h>
#include<string.h>
int main()
{
    int n,m;
    char num[1024];
    while( scanf( "%s%d",num,&m )!=EOF )
    {
         int len=strlen( num );
         int n=num[0]-'0',i=1;
         while( i<len )
         {
             n=n*10+num[i]-'0'; 
             n%=m;
             i++;     
         }
         printf( "%d\n",n );       
    }
    return 0;    
}