代码文本:
#include "stdio.h"
int main(int argc,char *argv[]){
char str[101],i,j,k,x,y,m,f;
printf("Enter a string...\nstr=");
scanf("%100s",str);
for(k=0;str[k];k++);
for(f=m=i=0;i<k;i++)
for(j=k-1;j>i;j--)
if(str[j]==str[i]){
for(y=j,x=i;x<y;x++,y--)
if(str[x]-str[y])
break;
if(x>=y && m<=j-i){
m=j-i+1;
f=i;
break;
}
}
printf("\nThe longest palindromic substring is\n\t\'");
for(i=0;i<m;putchar(str[f++]),i++);
printf("\'\nThe length is %d\n",m);
return 0;
}