.

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

void main(void)

{

int n; int answer;

char input[] = "abacacabbacacabbaacaacccabaabccababaababacc"; int num;

char *reverse;

num = (int)(strlen(input));

reverse = malloc(num*sizeof(char));

strcpy(reverse,input);

strrev(reverse);

n = num;

for(n=num; n>0; n--)

{

if(!strncmp(reverse,input+num-n,n)) break;

}

answer = (int)strlen(input+num-n)+2*(num-n);

printf("%d",answer);

}

내가 짜놓고 뿌듯해서