1027 Colors in Mars (20分)
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
#include<iostream> #include<algorithm> #include<cstdio> #include<cstdlib> #include<vector> #include<set> #include<cmath> #include<cstring> #include<queue> #include<string.h> using namespace std; const int maxn=1010; typedef long long ll; const int inf=0x3fffffff; vector<char> v; char k(int n){ if(n==10){ return 'A'; } if(n==11){ return 'B'; } if(n==12){ return 'C'; } if(n<12){ return n+48; } } void cc(int n){ int temp; if(n==0){ printf("00"); } while(n>0){ temp=n%13; v.push_back(k(temp)); n/=13; } if(v.size()==1){ printf("0"); } for(int i=v.size()-1;i>=0;i--){ printf("%c",v[i]); } v.clear(); } int main(){ int a,b,c; scanf("%d %d %d",&a,&b,&c); printf("#"); cc(a); cc(b); cc(c); return 0; }
注意考虑a,b,c等于0的情况
代码优化:
#include<bits/stdc++.h> using namespace std; int main(){ char s[14]="0123456789ABC"; int a,b,c; scanf("%d %d %d",&a,&b,&c); printf("#"); printf("%c%c",s[a/13],s[a%13]); printf("%c%c",s[b/13],s[b%13]); printf("%c%c",s[c/13],s[c%13]); return 0; }