
    In a content moderation system, write a function that activates the first pending moderation flag in a post's status bitmap, where each bit represents a specific moderation action (0 for pending, 1 for activated). The function should identify the leftmost unset bit (0) in the binary status and set it to 1, effectively marking the highest-priority pending moderation action as activated.
    

    
def set_left_most_unset_bit(n):
    """
    In a content moderation system, write a function that activates the first pending moderation flag in a post's status bitmap, where each bit represents a specific moderation action (0 for pending, 1 for activated). The function should identify the leftmost unset bit (0) in the binary status and set it to 1, effectively marking the highest-priority pending moderation action as activated.
    

    """
def set_left_most_unset_bit(n):
    """
    In a content moderation system, write a function that activates the first pending moderation flag in a post's status bitmap, where each bit represents a specific moderation action (0 for pending, 1 for activated). The function should identify the leftmost unset bit (0) in the binary status and set it to 1, effectively marking the highest-priority pending moderation action as activated.
    

    """
    if not n & n + 1:
        return n
    (pos, temp, count) = (0, n, 0)
    while temp:
        if not temp & 1:
            pos = count
        count += 1
        temp >>= 1
    return n | 1 << pos