7-11
![](http://images0.cnblogs.com/blog/571409/201310/09082036-a1397738f6f047dcaefcd1646909662d.png)
#include<stdio.h> int main(void) { int i,n,m; char s[10]; printf("Enter a string:"); i=0; while((s[i]=getchar())!='\n') i++; s[i]='\0'; for(n=0,m=i-1;n<m;n++,m--) if(s[n]!=s[m]) break; if(n>=m) printf("It is a plalindrome\n"); else printf("It is not a plalindrome\n"); return 0; }