PAT 甲级 1027 Colors in Mars
1027. Colors in Mars (20)
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 Input15 43 71Sample Output
#123456
简单题:
#include <iostream> #include <string.h> #include <stdlib.h> #include <stdio.h> #include <math.h> #include <algorithm> #include <vector> using namespace std; int a,b,c; char aa[14]={'0','1','2','3','4','5','6','7','8','9','A','B','C','D'}; void dfs(int x,int cnt) { if(x<13) { if(cnt==0) printf("0"); printf("%c",aa[x]); return; } dfs(x/13,cnt+1); printf("%c",aa[x%13]); } int main() { scanf("%d%d%d",&a,&b,&c); printf("#"); dfs(a,0); dfs(b,0); dfs(c,0); printf("\n"); return 0; }