PTA 1027 Colors in Mars（读懂题目意思很重要！！）

题目描述如下：

1027 Colors in Mars (20 point(s))

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

遇到的问题与解决思路：

这里的输出格式一定是#打头的，就是按照样例来，它补充说明的“如果有一个颜色是0，那么在它的左边输出0”，比如输入0 0 0，是输出#0 0 0还是#000000又或者是0？

问题就出在这里！

因为你根本没有理解题目在说什么！！！

题目的意思，如果输出的是1 1 1，那么输出的应该是#010101，用0来补位。

所以，根本不是英文的表述问题，这很清晰，而是自己太急，没冷静下来！

具体解决如下：

#include <cstdio>
const char marsnum[13] = {'0', '1', '2', '3', '4', '5', '6','7', '8', '9' , 'A', 'B', 'C'};
int main()
{int deci[3] = {0};int mars[6] = {0};for (int i = 0; i < 3; i++) {scanf("%d", &deci[i]);}int index = 0;for (int i = 0; i < 3; i++) {mars[index + 1] = deci[i] % 13;mars[index] = deci[i] / 13;index += 2;}/*for (int i = 0; i < 6; i++) {printf("%d", mars[i]);}printf("\n");*/printf("#");for (int i = 0; i < 6; i++) {printf("%c", marsnum[mars[i]]);}return 0;
}