学步园

模拟

#include<stdio.h>
char str[10][5]={{0,0,0,0,0},{0,0,0,0,0},{'0','A','B','C',0},{'0','D','E','F',0},{'0','G','H','I',0},{'0','J','K','L',0},{'0','M','N','O',0},{'0','P','Q','R','S'},{'0','T','U','V',0},{'0','W','X','Y','Z'}};  
char s1[27]={"QWERTYUIOPASDFGHJKLZXCVBNM"};
char s2[27]={"ABCDEFGHIJKLMNOPQRSTUVWXYZ"};
int main()
{
	int i,len,j,n,m,k;
	char ch[1010],ch1[1010],ch2[1010];
	while(scanf("%s",ch)!=-1)
	{
		for(len=i=0;ch[i];i=i+2)
		{
			ch1[len]=str[ch[i]-'0'][ch[i+1]-'0'];
			len++;
		}
		for(j=0;j<len;j++)
			for(i=0;i<26;i++)				
			{
				if(s1[i]==ch1[j])
				{ch1[j]=s2[i];break;}
			}
			k=0;n=len/2+len%2;
			for(i=0;i<n;i++)
			{
				ch2[k]=ch1[i];
				k+=2;
			}
			k=1;
			for(i=n;i<len;i++)
			{
				ch2[k]=ch1[i];
				k+=2;
			}
			for(i=len-1;i>=0;i--)
				printf("%c",ch2[i]);
			printf("\n");
	}
	return 0;
}