1838929_ac_0ms_24k.c

北大大牛代码 1240道题的原代码 超级权威

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

void main()
{
 int i;
 char s[260];

 while(scanf("%s",s)!=EOF)
 {
  
  for(i = strlen(s)-1; i >= 0; i--)
   {
     if(s[i]<='Z')
     switch(s[i])
     {
      case 'N' : if(strlen(s)-i-1>=1) strcpy(&s[i],&s[i+1]); else {printf("NO\n");goto N;}break;
      default :  if(strlen(s)-i-1>=2) strcpy(&s[i],&s[i+2]); else {printf("NO\n");goto N;}
     }
     else if(s[i] <= 'o') 
            {printf("NO\n");goto N;}
   }
  if(strlen(s)==1) printf("YES\n");
  else printf("NO\n");
  N: ;
 }
}