round given number to the nearest whole number

round_to_nearest_whole_number.py

import math

def custom_round(number):
    # Multiply by 100 and check if the last two digits are >= 45
    decimal_part = (number * 100) % 100
    
    # If the decimal part is >= 45, round up
    if decimal_part >= 45:
        return math.ceil(number)
    else:
        return math.floor(number)
      
      
# Test cases
print(custom_round(13.4))   # Output: 13
print(custom_round(13.5))   # Output: 14
print(custom_round(14.5))   # Output: 15
print(custom_round(14.45))  # Output: 15
print(custom_round(24.45))  # Output: 25