PAT-A-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
代码如下：

#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
using namespace std;
map<int,char> mp;
char ans[10];
int z[10];
void print(int A[],int num){
    for(int i = num-1 ; i >=0  ; i --){
        if(z[i]>=10){
            printf("%c",mp[z[i]]);
        }else{
            printf("%d",z[i]);
        }
    }
}
void change(int A[],int x){
    int num=0;
    do{
        A[num++]=x%13;
        x/=13;
    }while(x!=0);
    if(num==1){
        // num++;
        A[++num]=0;
    }
    print(A,num);
}
int main(){
    mp[10]='A';
    mp[11]='B';
    mp[12]='C';
    int a,b,c;
    scanf("%d%d%d",&a,&b,&c);
    printf("#");
    change(z,a);
    change(z,b);
    change(z,c);
    // system("pause");
    return 0;
}