1100 Mars Numbers （20 分）

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本文介绍了一个程序，用于在地球和火星的计数系统之间进行数字转换。火星使用13进制计数，数字被重新命名为月份名称。程序可以将地球上的数字转换为火星格式，反之亦然，帮助两个星球之间的交流。

1100 Mars Numbers （20 分）

People on Mars count their numbers with base 13:

Zero on Earth is called "tret" on Mars.
The numbers 1 to 12 on Earth 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:

4
29
5
elo nov
tam

Sample Output:

hel mar
may
115
13

#include<iostream>
#include<map>
#include<vector>
#include<cctype>
#include<string>
using namespace std;
string a[13] = {"tret","jan","feb","mar","apr","may","jun","jly","aug","sep","oct","nov","dec"};
string b[13] = {"","tam","hel","maa","huh","tou","kes","hei","elo" ,"syy","lok","mer","jou"};
void mars(string s){
	int num = stoi(s);
	if(num/13){
		cout <<  b[num/13];
		if(num%13){
			cout << " " << a[num%13];
		}
	}else{
		cout << a[num];
	}
}
void earth(string s){
	int l = s.length();
	int num = 0;
	if(l==4){
		cout << "0";
		return ;
	}
	else if(l == 3){
		for(int i = 1;i <= 12;i++){
			if(s==a[i]){
				cout<<i;
				return ;
			}
			if(s==b[i]){
				cout<<i*13;
				return;
			}
		}
	}else{
		string str1 = s.substr(0,3),str2 = s.substr(4,3);
		for(int i = 1;i<= 12;i++){
			if(str1==b[i]){
				num+=i*13;
			}
			if(str2==a[i]){
				num+=i;
			}
		}
		cout << num;
	}
}
int main(){
	int n;
	cin >> n;
	getchar();
	for(int i = 0;i < n;i++){
		string s;
		getline(cin,s);
		if(isdigit(s[0])){
			mars(s);
		}else{
			earth(s);
		}
		cout<<endl;
	} 
}