uva 10082 - WERTYU

#include <stdio.h>
#include <string.h>

char str[1000000];

void solve ( char &ch )
{
	if ( '2' <= ch && ch <= '9' )
	{
		ch--;
		return ;
	}
	switch ( ch )
	{
		case '-': ch = '0'; break;
		case '=': ch = '-'; break;
		case '1': ch = '`'; break;
		case '0': ch = '9'; break;
		case 'W': ch = 'Q'; break;
		case 'E': ch = 'W'; break;
		case 'R': ch = 'E'; break;
		case 'T': ch = 'R'; break;
		case 'Y': ch = 'T'; break;
		case 'U': ch = 'Y'; break;
		case 'I': ch = 'U'; break;
		case 'O': ch = 'I'; break;
		case 'P': ch = 'O'; break;
		case '[': ch = 'P'; break;
		case ']': ch = '['; break;
		case '\\': ch = ']'; break;
		case 'S': ch = 'A'; break;
		case 'D': ch = 'S'; break;
		case 'F': ch = 'D'; break;
		case 'G': ch = 'F'; break;
		case 'H': ch = 'G'; break;
		case 'J': ch = 'H'; break;
		case 'K': ch = 'J'; break;
		case 'L': ch = 'K'; break;
		case ';': ch = 'L'; break;
		case '\'': ch = ';'; break;
		case 'X': ch = 'Z'; break;
		case 'C': ch = 'X'; break;
		case 'V': ch = 'C'; break;
		case 'B': ch = 'V'; break;
		case 'N': ch = 'B'; break;
		case 'M': ch = 'N'; break;
		case ',': ch = 'M'; break;
		case '.': ch = ','; break;
		case '/': ch = '.'; break;
	}
}

int main ( )
{
	while ( gets ( str ) != NULL )
	{
		int len = strlen ( str );
		for ( int i = 0; i < len; i++ )
		{
			solve ( str[i] );
		}
		printf ( "%s\n", str );
	}
	return 0;
}

题意：  将输入的字符串在键盘上左移一位！Q A Z 还有功能键不考虐！

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