Practice Number of Valid Clock Times
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Number of Valid Clock Times
You are given a string of length 5 called time, representing the current time on a digital clock in the format "hh:mm". The earliest possible time is "00:00" and the latest possible time is "23:59". In the string time, the digits represented by the ? symbol are unknown, and must be replaced with a digit from 0 to 9. Return an integer answer, the number of valid clock times that can be created by replacing every ? with a digit from 0 to 9.
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Problem Statement
You are given a string of length 5 called time, representing the current time on a digital clock in the format "hh:mm". The earliest possible time is "00:00" and the latest possible time is "23:59". In the string time, the digits represented by the ? symbol are unknown, and must be replaced with a digit from 0 to 9. Return an integer answer, the number of valid clock times that can be created by replacing every ? with a digit from 0 to 9.
Source: Number of Valid Clock Times on LeetCode. Use the original task for its coding environment and submissions.
Number of Valid Clock Times
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Examples
# Example 1
time = "?5:00"
2
# Example 2
time = "0?:0?"
100
# Example 3
time = "??:??"
1440
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