hdu 2816 I Love You Too

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;}