題目

People in Mars represent the colors in their computers in a similar way as the Earth people. That is, a color is represented by a 6-digit number, where the first 2 digits are for Red, the middle 2 digits for Green, and the last 2 digits for Blue. The only difference is that they use radix 13 (0-9 and A-C) instead of 16. Now given a color in three decimal numbers (each between 0 and 168), you are supposed to output their Mars RGB values.

Input Specification:
Each input file contains one test case which occupies a line containing the three decimal color values.

Output Specification:
For each test case you should output the Mars RGB value in the following format: first output #, then followed by a 6-digit number where all the English characters must be upper-cased. If a single color is only 1-digit long, you must print a 0 to its left.

Sample Input:

15 43 71

Sample Output:

#123456

解題思路

　　簡單的進位制轉換，沒啥約束條件，用一個數組，直接運算就好了。

/*
** @Brief:No.1027 of PAT advanced level.
** @Author:Jason.Lee
** @Date:2018-12-04 
** @status: Accepted!
*/

#include<iostream>
#include<string>
using namespace std;

char sets[
 
] = "0123456789ABC";

int main(){
	int r,g,b;
	while(cin>>r>>g>>b){
		cout<<"#"<<sets[r/13]<<sets[r%13]<<sets[g/13]<<sets[g%13]<<sets[b/13]<<sets[b%13]<<endl;
	}
	return 0;
}