#include <stdio.h> #include <stdlib.h> #define BUFFER_LENGTH (1000) int compare_asc (const void* a, const void*b) { return (*(int*)a - *(int*)b); } int compare_desc (const void* a, const void*b) { return (*(int*)b - *(int*)a); } int main() { int length; scanf("%d", &length)...