
    Write a function that validates a student's performance code number, where each digit represents different academic metrics (attendance, submissions, participation), by ensuring that the frequency of each digit in the code does not exceed the actual performance level it represents. For example, in a performance code, the digit '3' should not appear more than 3 times, as this would invalidate the performance tracking system.
    

    
def validate(n):
    """
    Write a function that validates a student's performance code number, where each digit represents different academic metrics (attendance, submissions, participation), by ensuring that the frequency of each digit in the code does not exceed the actual performance level it represents. For example, in a performance code, the digit '3' should not appear more than 3 times, as this would invalidate the performance tracking system.
    

    """
def validate(n):
    """
    Write a function that validates a student's performance code number, where each digit represents different academic metrics (attendance, submissions, participation), by ensuring that the frequency of each digit in the code does not exceed the actual performance level it represents. For example, in a performance code, the digit '3' should not appear more than 3 times, as this would invalidate the performance tracking system.
    

    """
    for i in range(10):
        temp = n
        count = 0
        while temp:
            if temp % 10 == i:
                count += 1
            if count > i:
                return False
            temp //= 10
    return True