编程之美--3.2电话号码对应英文单词

// phoneNumber.cpp : 定义控制台应用程序的入口点。
//

#include "stdafx.h"

#define telLength 2
int number[telLength]={4,2};
char c[10][10]=
{
	"",
	"",
	"ABC",
	"DEF",
	"GHI",
	"JKL",
	"MNO",
	"PQRS",
	"TUV",
	"WXYZ"
};
int answer[telLength]={0};
int total[10]={0,0,3,3,3,3,3,4,3,4};

void trave()
{
	while(true)
	{
		for(int i=0;i<telLength;i++)
			printf("%c",c[number[i]][answer[i]]);
		printf("\n");
		int k=telLength-1;
		while(k>=0)
		{
			if(answer[k]<total[number[k]]-1)
			{
				answer[k]++;
				break;
			}
			else
			{
				answer[k]=0;
				k--;
			}
		}
		if(k<0)
			break;

	}
}

void recursiveSearch(int* number,int* answer, int index, int n)
{

	if(index==n)
	{
		for(int i=0;i<telLength;i++)
			printf("%c",c[number[i]][answer[i]]);
		printf("\n");
		return;
	}
	for(answer[index]=0;answer[index]<total[number[index]];answer[index]++)
	{
		recursiveSearch(number,answer,index+1,n);
	}
}


int _tmain(int argc, _TCHAR* argv[])
{
	//trave();
	recursiveSearch(number,answer,0,telLength);

	return 0;
}