How to Solve Alert Using Same Key- Card Three or More Times in a One Hour Period Problem
Master the Alert Using Same Key- Card Three or More Times in a One Hour Period LeetCode problem with undetectable real-time assistance. Get instant solutions and explanations during your coding interviews.
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Alert Using Same Key-Card Three or More Times in a One Hour Period
LeetCode company workers use key-cards to unlock office doors. Each time a worker uses their key-card, the security system saves the worker's name and the time when it was used. The system emits an al...
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Understanding the Alert Using Same Key- Card Three or More Times in a One Hour Period Problem
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Problem Statement
LeetCode company workers use key-cards to unlock office doors. Each time a worker uses their key-card, the security system saves the worker's name and the time when it was used. The system emits an alert if any worker uses the key-card three or more times in a one-hour period. You are given a list of strings keyName and keyTime where [keyName[i], keyTime[i]] corresponds to a person's name and the time when their key-card was used in a single day. Access times are given in the 24-hour time format "HH:MM", such as "23:51" and "09:49". Return a list of unique worker names who received an alert for frequent keycard use. Sort the names in ascending order alphabetically. Notice that "10:00" - "11:00" is considered to be within a one-hour period, while "22:51" - "23:52" is not considered to be within a one-hour period.
Alert Using Same Key-Card Three or More Times in a One Hour Period
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Examples
keyName = ["daniel","daniel","daniel","luis","luis","luis","luis"], keyTime = ["10:00","10:40","11:00","09:00","11:00","13:00","15:00"]["daniel"]"daniel" used the keycard 3 times in a one-hour period ("10:00","10:40", "11:00").
keyName = ["alice","alice","alice","bob","bob","bob","bob"], keyTime = ["12:01","12:00","18:00","21:00","21:20","21:30","23:00"]["bob"]"bob" used the keycard 3 times in a one-hour period ("21:00","21:20", "21:30").
Constraints
1 <= keyName.length, keyTime.length <= 105keyName.length == keyTime.lengthkeyTime[i] is in the format "HH:MM".[keyName[i], keyTime[i]] is unique.1 <= keyName[i].length <= 10keyName[i] contains only lowercase English letters.How Interview Coder Helps with Leetcode Problems
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