PAT 甲级 1027 Colors in Mars （20 分）

1027 Colors in Mars （20 分）

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

#include<iostream>

using namespace std;

char num[13] = {'0','1','2','3','4','5','6','7','8','9','A','B','C'};

void deal(int oct)
{
  cout<<num[oct/13]<<num[oct%13];
}

int main()
{
  int R,G,B;
  
  cin>>R>>G>>B;
  
  cout<<'#';
  
  deal(R);
  deal(G);
  deal(B);
  
  return 0;
}