{ "data": { "question": { "questionId": "2033", "questionFrontendId": "1904", "boundTopicId": null, "title": "The Number of Full Rounds You Have Played", "titleSlug": "the-number-of-full-rounds-you-have-played", "content": "

You are participating in an online chess tournament. There is a chess round that starts every 15 minutes. The first round of the day starts at 00:00, and after every 15 minutes, a new round starts.

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You are given two strings loginTime and logoutTime where:

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If logoutTime is earlier than loginTime, this means you have played from loginTime to midnight and from midnight to logoutTime.

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Return the number of full chess rounds you have played in the tournament.

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Note: All the given times follow the 24-hour clock. That means the first round of the day starts at 00:00 and the last round of the day starts at 23:45.

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Example 1:

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\nInput: loginTime = "09:31", logoutTime = "10:14"\nOutput: 1\nExplanation: You played one full round from 09:45 to 10:00.\nYou did not play the full round from 09:30 to 09:45 because you logged in at 09:31 after it began.\nYou did not play the full round from 10:00 to 10:15 because you logged out at 10:14 before it ended.\n
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Example 2:

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\nInput: loginTime = "21:30", logoutTime = "03:00"\nOutput: 22\nExplanation: You played 10 full rounds from 21:30 to 00:00 and 12 full rounds from 00:00 to 03:00.\n10 + 12 = 22.\n
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Constraints:

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