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Leetcode 2224. Minimum Number of Operations to Convert Time

Given two 24-hour times current <= correct, find the minimum number of operations to reach correct by repeatedly adding 1, 5, 15, or 60 minutes. Equivalently, compute the minute difference and minimize the count of coins with denominations 60, 15, 5, and 1 (greedy choice is optimal).

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Leetcode 2224. Minimum Number of Operations to Convert Time | Hello Interview