题目

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:

1

15 43 71

Sample Output:

1

#123456

思路

很简单的一道题，13进制的转换

代码

Github最新代码，欢迎交流

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#include <stdio.h>

int main()
{
	int n, DIGITS = 3;
	char convert[] = "0123456789ABC";
	printf("#");

	for (int i = 0; i < DIGITS; i++) {
		scanf("%d", &n);
		printf("%c%c", convert[n / 13], convert[n % 13]);
	}
	return 0;
}