Solution: Pairs of Songs With Total Durations Divisible by 60
Explore how to identify pairs of songs where the total duration is divisible by 60 by using a remainder tracking approach. Understand the process of counting valid pairs through modular arithmetic and how to implement this efficiently with linear time and constant space complexity.
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Statement
You are given a list of songs, where the duration of each song is represented by an integer array time, where time[i] indicates the length of the
Your task is to find and return the number of pairs of songs (i, j) such that:
i < j(i.e., the pair should consist of two distinct songs)The sum of their durations is divisible by 60, i.e.,
(time[i] + time[j]) % 60 == 0.
Constraints:
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