#include <string.h>char*huiwen(char *str){ char *p1,*p2; int i,t=0;p1=str; p2=str+strlen(str)-1;for(i=0);i<=strlen(str)/2;i+ +)if(*p1+ +! =*p2--){t=1;break;}if(i>srrlen(str)/2)return("yes!");elsereturn("no!");}main( ){ char str[50];printf("Input:"); scanf("%s",str);printf("%s\n",huiwen(str));}//求...