PAT Advanced 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 toChar(int a){
    switch(a){
        case 10:return 'A';break;
        case 11:return 'B';break;
        case 12:return 'C';break;
        default:return a+'0';
    }
}
int main() {
    int a,b,c;
    cin>>a>>b>>c;
    cout<<"#"<<toChar(a/13)<<toChar(a%13)<<toChar(b/13)<<toChar(b%13)<<toChar(c/13)<<toChar(c%13);
    system("pause");
    return 0;
}

注意大于10进制都需要一个toChar函数