methods/lcb/function_code_sample/random_func_10.py

import random
import string

def generate_random_string(length):
    return ''.join(random.choice(string.ascii_lowercase) for _ in range(length))

def generate_operations(num_ops, initial_length):
    operations = []
    current_length = initial_length
    
    for _ in range(num_ops):
        op_type = random.choices(['Q', 'R', 'I'], weights=[0.4, 0.3, 0.3])[0]
        
        if op_type == 'Q':
            if current_length >= 2:
                x = random.randint(1, current_length)
                y = random.randint(1, current_length)
                operations.append(f"Q {x} {y}")
            else:
                operations.append(f"Q 1 1")
        
        elif op_type == 'R':
            if current_length >= 1:
                x = random.randint(1, current_length)
                d = random.choice(string.ascii_lowercase)
                operations.append(f"R {x} {d}")
        
        elif op_type == 'I':
            x = random.randint(0, current_length)
            d = random.choice(string.ascii_lowercase)
            operations.append(f"I {x} {d}")
            current_length += 1
    
    return operations

def construct_inputs():
    inputs = []
    
    # Small test cases
    for _ in range(10):
        initial_string = generate_random_string(random.randint(1, 20))
        num_ops = random.randint(1, 30)
        operations = generate_operations(num_ops, len(initial_string))
        
        test_case = initial_string + '\n' + str(num_ops) + '\n' + '\n'.join(operations)
        inputs.append(test_case)
    
    # Medium test cases
    for _ in range(10):
        initial_string = generate_random_string(random.randint(50, 500))
        num_ops = random.randint(100, 1000)
        operations = generate_operations(num_ops, len(initial_string))
        
        test_case = initial_string + '\n' + str(num_ops) + '\n' + '\n'.join(operations)
        inputs.append(test_case)
    
    # Large test cases
    for _ in range(10):
        initial_string = generate_random_string(random.randint(1000, 10000))
        num_ops = random.randint(5000, 50000)
        operations = generate_operations(num_ops, len(initial_string))
        
        test_case = initial_string + '\n' + str(num_ops) + '\n' + '\n'.join(operations)
        inputs.append(test_case)
    
    # Edge cases
    # Single character string
    initial_string = "a"
    operations = ["Q 1 1", "R 1 b", "Q 1 1", "I 0 c", "Q 1 2"]
    test_case = initial_string + '\n' + str(len(operations)) + '\n' + '\n'.join(operations)
    inputs.append(test_case)
    
    # Maximum constraints
    initial_string = generate_random_string(100000)
    num_ops = 150000
    operations = generate_operations(num_ops, len(initial_string))
    test_case = initial_string + '\n' + str(num_ops) + '\n' + '\n'.join(operations)
    inputs.append(test_case)
    
    return inputs