PAT甲级——A1027 Colors in Mars

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

只能说巨简单！

#include <iostream>
#include <string>
using namespace std;
int main()
{
    int a[3];
    string str = "0123456789ABC";
    cin >> a[0] >> a[1] >> a[2];
    printf("#%c%c%c%c%c%c
", str[a[0] / 13], str[a[0] % 13],
        str[a[1] / 13], str[a[1] % 13], str[a[2] / 13], str[a[2] % 13]);
    return 0;
}