PAT (Advanced Level) Practise 1027 Colors in Mars (20)

1027. Colors in Mars (20)

时间限制

400 ms

内存限制

65536 kB

代码长度限制

16000 B

判题程序

Standard

作者

CHEN, Yue

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

Each input file contains one test case which occupies a line containing the three decimal color values.

Output

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 the left.
Sample Input

15 43 71

Sample Output

#123456

题意：给三个十进制的数，把它们转换为十三进制的数输出。要求在前面加上一个”#”号
解题思路：因为0~168的十进制转换为13进制不会超过两位数，所以这个两位数为(num
/ 13)(num % 13)构成的数字

#include <iostream>
#include <cstdio>
#include <string>
#include <cstring>
#include <algorithm>
#include <cmath>
#include <queue>
#include <stack>
#include <vector>

using namespace std;

#define ll long long

void f(int x)
{
if(x<10) printf("%d",x);
else printf("%c",x-10+'A');
}

int main()
{
int n;
printf("#");
for(int i=0;i<3;i++)
{
scanf("%d",&n);
f(n/13);
f(n%13);
}
return 0;
}