1100. Mars Numbers (20)

People on Mars count their numbers with base 13:

• Zero on Earth is called "tret" on Mars.
• The numbers 1 to 12 on Earch is called "jan, feb, mar, apr, may, jun, jly, aug, sep, oct, nov, dec" on Mars, respectively.
• For the next higher digit, Mars people name the 12 numbers as "tam, hel, maa, huh, tou, kes, hei, elo, syy, lok, mer, jou", respectively.

For examples, the number 29 on Earth is called "hel mar" on Mars; and "elo nov" on Mars corresponds to 115 on Earth. In order to help communication between people from these two planets, you are supposed to write a program for mutual translation between Earth and Mars number systems.

Input Specification:

Each input file contains one test case. For each case, the first line contains a positive integer N (< 100). Then N lines follow, each contains a number in [0, 169), given either in the form of an Earth number, or that of Mars.

Output Specification:

For each number, print in a line the corresponding number in the other language.

Sample Input:

4295elo novtam

Sample Output:

hel marmay11513

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将若干个数在地球文和火星文之间转换。用map可以实现火星文转换成地球的数字。注意基数是13，还要注意高位和低位的表示是不一样的。

代码：

#include <iostream>#include <cstring>#include <cstdlib>#include <cstdio>#include <vector>#include <map>using namespace std;string low[13]={"tret","jan", "feb", "mar", "apr", "may", "jun", "jly", "aug", "sep", "oct", "nov", "dec"};string high[13]={"","tam", "hel", "maa", "huh", "tou", "kes", "hei", "elo", "syy", "lok", "mer", "jou"};int main(){int n;cin>>n;getchar();map<string,int>Map1,Map2;for(int i=0;i<13;i++){Map1[low[i]]=i;Map2[high[i]]=i;}for(int i=0;i<n;i++){string s;getline(cin,s);if(isdigit(s[0])){int num=atoi(s.c_str());int l=num%13,h=num/13;if(l==0&&h==0) cout<<"tret"<<endl;else if(l==0) cout<<high[h]<<endl;else if(h==0) cout<<low[l]<<endl;else cout<<high[h]<<" "<<low[l]<<endl;}else{int idx=0;while(s[idx]!=' '&&idx<s.size()) idx++;int h=0,l=0;if(idx==s.size()){if(Map1.find(s)!=Map1.end()) l=Map1[s];else h=Map2[s];}else{h=Map2[s.substr(0,idx)];l=Map1[s.substr(idx+1)];}cout<<h*13+l<<endl;}}}