#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <string.h>
#define TEST(arr, n, func, ...) {\
int *num = (int *) malloc (sizeof(int) * n);\
memcpy(num, arr, sizeof(int) * n);\
output(num,n);\
printf("%s = ", #func);\
func(__VA_ARGS__);\
output(num,n);\
free(num);\
printf("\n");\
}
#define swap(a,b){\
int temp = a;\
a = b;\
b = temp;\
}
void output(int* arr, int n) {
printf("[");
for (int i = 0; i < n; i++) {
i&& printf(", ");
printf("%d",arr[i]);
}
printf("]\n");
return;
}
void select_sort(int* num, int n) {
for (int i = 0; i < n - 1; i++) {
int ind = i;
for (int j = i + 1; j < n; j++) {
if (num[j] < num[ind]) ind = j;
}
swap(num[i], num[ind]);
}
return;
}
void quick_sort(int* num, int l, int r) {
if (l > r) return;
int x = l, y = r, z = num[x];
while (x < y) {
while ( x < y && num[y] > z) y--;
if (x < y) num[x++] = num[y];
while (x < y && num[x] < z) x++;
if (x < y) num[y--] = num[x];
}
num[x] = z;
quick_sort(num, l, x - 1);
quick_sort(num, x + 1, r);
return;
}
void randint(int* arr, int n) {
while (n--)
arr[n] = rand() % 100;
return;
}
int main() {
srand(time(0));
#define MAX_N 20
int arr[MAX_N];
randint(arr, MAX_N);
TEST(arr, MAX_N, select_sort, num, MAX_N);
TEST(arr, MAX_N, quick_sort, num, 0, MAX_N - 1);
return 0;
}
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