HDU-5760 Machine (水 十进制化成三进制) From BestCoder #81(dir2)

HDU-5760 Machine (水)

题目链接
题意：签到题把RGB看成三个状态，在把按下的n下取余 3^m化成三进制

#include<iostream>
#include<cstring>
#include<algorithm>
#include<cstring>
#include<cmath>
using namespace std;
char s[]={'R','G','B'};
int main()
{
    long long int m,n,x,y;
    int i,t;
    cin>>t; 
    while(t--)
    {
        char b[100];
        cin>>m>>n;
        int rel = 0;
        int mul = 1;
        for(i=1;i<=m;i++){
            mul*=3;
        }
        n %= mul;
        while(n)
        {
            y = n%3;
            b[rel++] = s[y];
            n /= 3;
        }

        for(i=1;i<=m-rel;i++)
            cout<<"R";

        for(i=rel-1;i>=0;i--)
            cout<<b[i];
        cout<<endl;
    }
    return 0;
}