2224. Minimum Number of Operations to Convert Time
Description
You are given two strings current
and correct
representing two 24hour times.
24hour times are formatted as "HH:MM"
, where HH
is between 00
and 23
, and MM
is between 00
and 59
. The earliest 24hour time is 00:00
, and the latest is 23:59
.
In one operation you can increase the time current
by 1
, 5
, 15
, or 60
minutes. You can perform this operation any number of times.
Return the minimum number of operations needed to convert current
to correct
.
Example 1:
Input: current = "02:30", correct = "04:35" Output: 3 Explanation: We can convert current to correct in 3 operations as follows:  Add 60 minutes to current. current becomes "03:30".  Add 60 minutes to current. current becomes "04:30".  Add 5 minutes to current. current becomes "04:35". It can be proven that it is not possible to convert current to correct in fewer than 3 operations.
Example 2:
Input: current = "11:00", correct = "11:01" Output: 1 Explanation: We only have to add one minute to current, so the minimum number of operations needed is 1.
Constraints:
current
andcorrect
are in the format"HH:MM"
current <= correct
Solutions
Solution 1
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