數字翻譯器及其實現

【問題描述】
輸入一個正整數N（N最大是4位元），輸出它的英文表達。
【範例】
輸入：1
輸出：one
又輸入：12
輸出：twelve
右輸入：135
輸出：one hundred thirty five

思路：1、首先19以內的數字，可以直接輸出。。

2、20~~~99以內的數字，整十的整數可以直接輸出。否則，除以10輸出十位元字，與10模數輸出個位元字。

3、100~~~999以內的數字，除以100輸出百位元字，與100模數得到一個兩位的數字，轉到2

4、1000~~~9999以內的數字，除以1000輸出千位元字，與1000模數得到一個三位的數字，轉到3

完整的實現代碼如下：

#include "iostream"using namespace std;char table[20][20]= {"zero","one","two","three","four","five","six","seven","eight","nine","ten","eleven","twelve","thirteen","fourteen","fifteen","sixteen","seventeen","eighteen","ninteen" };char tens[12][20]={"","ten","twenty","thirty","forty","fifty","sixty","seventy","eighty","ninty","hundred","thousand" };void print(int n){if(n >= 0 && n <= 19){cout<<table[n];         //直接輸出19以內的數字}else if(n >= 20 && n <= 99 && n%10 == 0)     //整十{cout<<tens[n/10];}else if(n >= 20 && n <= 99)          //先輸出十位，再輸出個位{cout<<tens[n/10]<<" "<<table[n%10];}else if(n >= 100 && n<= 999){print(n/100);cout<<" "<<tens[10]<<" ";    //輸出百位print(n%100);                //遞迴調用，輸出十位和個位}else if(n >= 1000 && n <= 999999){print(n/1000);cout<<" "<<tens[11]<<" ";    //輸出千位print(n%1000);               //遞迴調用，輸出百位、十位和個位}}int main(void){int n;while(cin>>n){print(n);cout<<endl;}system("pause");return 0;}

運行如下：