|
| 1 | +import tkinter as tk |
| 2 | +from tkinter import messagebox |
| 3 | +import time |
| 4 | + |
| 5 | +def setup_window(): |
| 6 | + root = tk.Tk() |
| 7 | + root.title("Binary Search Algorithm Visualizer") |
| 8 | + root.geometry("600x400") |
| 9 | + return root |
| 10 | + |
| 11 | +def create_input_fields(root): |
| 12 | + tk.Label(root, text="Enter numbers (comma separated):").pack(pady=5) |
| 13 | + array_entry = tk.Entry(root, width=50) |
| 14 | + array_entry.pack(pady=5) |
| 15 | + |
| 16 | + tk.Label(root, text="Enter target number:").pack(pady=5) |
| 17 | + target_entry = tk.Entry(root, width=20) |
| 18 | + target_entry.pack(pady=5) |
| 19 | + |
| 20 | + return array_entry, target_entry |
| 21 | + |
| 22 | +def create_buttons(root, start_search): |
| 23 | + search_button = tk.Button(root, text="Start Search", command=start_search) |
| 24 | + search_button.pack(pady=10) |
| 25 | + |
| 26 | + return search_button |
| 27 | + |
| 28 | +def display_array(canvas, array, left, right, mid): |
| 29 | + canvas.delete("all") |
| 30 | + width = 500 / len(array) |
| 31 | + for i, num in enumerate(array): |
| 32 | + x0 = i * width |
| 33 | + x1 = (i + 1) * width |
| 34 | + color = "white" |
| 35 | + if i == mid: |
| 36 | + color = "green" |
| 37 | + elif i >= left and i <= right: |
| 38 | + color = "yellow" |
| 39 | + canvas.create_rectangle(x0, 50, x1, 100, fill=color) |
| 40 | + canvas.create_text((x0 + x1) / 2, 75, text=str(num), fill="black") |
| 41 | + canvas.update() |
| 42 | + |
| 43 | +def binary_search_visualize(array, target, canvas): |
| 44 | + left, right = 0, len(array) - 1 |
| 45 | + while left <= right: |
| 46 | + mid = (left + right) // 2 |
| 47 | + display_array(canvas, array, left, right, mid) |
| 48 | + time.sleep(1) # Pause to visualize the step |
| 49 | + if array[mid] == target: |
| 50 | + messagebox.showinfo("Result", f"Target {target} found at index {mid}") |
| 51 | + return |
| 52 | + elif array[mid] < target: |
| 53 | + left = mid + 1 |
| 54 | + else: |
| 55 | + right = mid - 1 |
| 56 | + messagebox.showinfo("Result", f"Target {target} not found in the array") |
| 57 | + |
| 58 | +def start_search(array_entry, target_entry, canvas): |
| 59 | + array_str = array_entry.get() |
| 60 | + target_str = target_entry.get() |
| 61 | + |
| 62 | + if not array_str or not target_str: |
| 63 | + messagebox.showwarning("Input Error", "Please enter both array and target.") |
| 64 | + return |
| 65 | + |
| 66 | + try: |
| 67 | + array = list(map(int, array_str.split(','))) |
| 68 | + except ValueError: |
| 69 | + messagebox.showerror("Input Error", "Please enter a valid array of integers.") |
| 70 | + return |
| 71 | + |
| 72 | + try: |
| 73 | + target = int(target_str) |
| 74 | + except ValueError: |
| 75 | + messagebox.showerror("Input Error", "Please enter a valid target integer.") |
| 76 | + return |
| 77 | + |
| 78 | + array.sort() # Binary search requires a sorted array |
| 79 | + binary_search_visualize(array, target, canvas) |
| 80 | + |
| 81 | +def main(): |
| 82 | + root = setup_window() |
| 83 | + |
| 84 | + array_entry, target_entry = create_input_fields(root) |
| 85 | + |
| 86 | + canvas = tk.Canvas(root, width=500, height=150, bg="white") |
| 87 | + canvas.pack(pady=20) |
| 88 | + |
| 89 | + start_search_callback = lambda: start_search(array_entry, target_entry, canvas) |
| 90 | + create_buttons(root, start_search_callback) |
| 91 | + |
| 92 | + root.mainloop() |
| 93 | + |
| 94 | +if __name__ == "__main__": |
| 95 | + main() |
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