PAT-A1027 Colors in Mars 题目内容及题解

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

题目大意

将十进制数转化为十三进制并按格式输出即可。

解题思路

进制转换后按格式输出，并返回0值即可。

代码

#include<stdio.h>
int main(){
    int i=3,n;
    char a[15]="0123456789ABC";
    printf("#");
    while(i--){
        scanf("%d",&n);
        printf("%c%c",a[n/13],a[n%13]);
    }
    printf("\n");
    return 0;
}

运行结果

PAT-A1027 Colors in Mars 题目内容及题解