国王的魔镜

#include<stdio.h>#include<string.h>int main(){    int i,j,n,a,b,c,t=0;    char str[100]={0};    scanf("%d",&n);    n=n+1;    while (n--)    {        gets(str);        a=strlen(str);        if (a%2 != 0)        {            printf("%d\n",a);        }        if (a%2 == 0)        {            b=a/2;            while (b!=0)            {                for (i=0; i<b; i++)                {                    if (str[i]!=str[a-1-i])                        break;                }                if (i != b)                {                    printf("%d\n",a);                    break;                }                a=a/2;                b=a/2;                if (a%2 != 0)                {                    printf("%d\n",a);                    break;                }            }        }    }    return 0;}