百练 2972 确定进制

题目链接：http://bailian.openjudge.cn/practice/2972

#include<stdio.h>int Y(int i,int B){int f=1;while(i>0){f=B*f;i--;}return f;}int G(int x,int B){int sum=0,i=0,t;while(x!=0){t=x%10;if(t>=B) return 2;sum=sum+t*Y(i,B);i++;x=x/10;}return sum;}int F(int a,int b,int c){int B;for(B=2;B<=16;B++){if((G(a,B)*G(b,B))==G(c,B))return B;}return 0;}int main(){  int i,n,a,b,c;  scanf("%d",&n);  getchar();  for(i=1;i<=n;i++)  {  scanf("%d%d%d",&a,&b,&c);  printf("%d\n",F(a,b,c));    }  return 0;}