Human Readable Time（codewar）

题目：Write a function, which takes a non-negative integer (seconds) as input and returns the time in a human-readable format (HH:MM:SS)

• HH = hours, padded to 2 digits, range: 00 - 99
• MM = minutes, padded to 2 digits, range: 00 - 59
• SS = seconds, padded to 2 digits, range: 00 - 59

The maximum time never exceeds 359999 (99:59:59)

 

我的答案：592ms

def make_readable(seconds):
    hour = seconds // (60*60)
    seconds = seconds % (60*60)
    mm = seconds // 60
    seconds = seconds % 60
    return ('{:0>2d}:{:0>2d}:{:0>2d}'.format(hour, mm, seconds))

正常的思路，分别求出hour，mm，seconds，然后使用format格式表达

 

答案二：

def make_readable(seconds):
    hours, seconds = divmod(seconds, 60 ** 2)
    minutes, seconds = divmod(seconds, 60)
    return '{:02}:{:02}:{:02}'.format(hours, minutes, seconds)

使用divmod，同时取余和取模，不需要对seconds多次单独赋值，简单明了

 

答案三：

def make_readable(s):
    return '{:02}:{:02}:{:02}'.format(s / 3600, s / 60 % 60, s % 60)