Beecrowd 1235 - C

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#define f(i, s, t) for (int i = s; i < t; ++i)
#define fd(i, t, s) for (int i = t; i >= s; --i)

int main() {
  int n; scanf("%d", &n);
  size_t size = 110;
  char * p = (char*)malloc(size*sizeof(char));
  getline(&p, &size, stdin);
  f(i,0,n) {
    getline(&p, &size, stdin);
    p[strlen(p)-1] = '\n';
    int a = strlen(p)/2, b = strlen(p) - a;
    fd(j, a-1, 0) {
      printf("%c", p[j]);
    }
    fd(j, strlen(p)-2, b-1) {
      printf("%c", p[j]);
    }
    printf("\n");
  }
  free(p), p = NULL;
}