HDOJ 1029 Ignatius and the Princess IV

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

int cmp(const void *a, const void *b){
return *(int *)a - *(int *)b;
}

int main(){
int n, *a, i;
while(scanf("%d", &n) == 1){
i = n;
a = (int *)malloc(sizeof(int) *n);
while(i--)
scanf("%d", &a[i]);
qsort(a, n, sizeof(int), cmp);
printf("%d\n", a[n / 2]);
free(a);
}
return 0;
}