| import time |
| from colors import * |
|
|
|
|
| def partition(data, start, end, draw_data, time_tick): |
| i = start + 1 |
| pivot = data[start] |
| for j in range(start+1, end+1): |
| if data[j] < pivot: |
| data[i], data[j] = data[j], data[i] |
| i += 1 |
| data[start], data[i-1] = data[i-1], data[start] |
| return i - 1 |
|
|
|
|
| import random |
| def rand_partition(data, start, end, draw_data, time_tick): |
| rand = start + random.randrange(end - start + 1) |
| data[rand], data[start] = data[start], data[rand] |
| return partition(data, start, end, draw_data, time_tick) |
|
|
|
|
| def quick_sort(data, start, end, draw_data, time_tick): |
| if start < end: |
| |
| pivot_position = rand_partition(data, start, end, draw_data, time_tick) |
| quick_sort(data, start, pivot_position-1, draw_data, time_tick) |
| quick_sort(data, pivot_position+1, end, draw_data, time_tick) |
| draw_data(data, [PURPLE if x >= start and x < pivot_position else YELLOW if x == |
| pivot_position else DARK_BLUE if x > pivot_position and x <= end else BLUE for x in range(len(data))]) |
| time.sleep(time_tick) |
| draw_data(data, [BLUE for x in range(len(data))]) |
