Package g1001_1100.s1010_pairs_of_songs_with_total_durations_divisible_by_60

Class Solution

java.lang.Object
g1001_1100.s1010_pairs_of_songs_with_total_durations_divisible_by_60.Solution
public class Solution extends java.lang.Object
1010 - Pairs of Songs With Total Durations Divisible by 60.

Medium

You are given a list of songs where the ith song has a duration of time[i] seconds.

Return the number of pairs of songs for which their total duration in seconds is divisible by 60. Formally, we want the number of indices i, j such that i < j with (time[i] + time[j]) % 60 == 0.

Example 1:

Input: time = [30,20,150,100,40]

Output: 3

Explanation: Three pairs have a total duration divisible by 60:

(time[0] = 30, time[2] = 150): total duration 180

(time[1] = 20, time[3] = 100): total duration 120

(time[1] = 20, time[4] = 40): total duration 60

Example 2:

Input: time = [60,60,60]

Output: 3

Explanation: All three pairs have a total duration of 120, which is divisible by 60.

Constraints:

  • 1 <= time.length <= 6 * 104
  • 1 <= time[i] <= 500

  • Constructor Summary

    Constructors
    Constructor
    Description
    Solution()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    int
    numPairsDivisibleBy60(int[] time)
     

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • Solution

      public Solution()

  • Method Details

    • numPairsDivisibleBy60

      public int numPairsDivisibleBy60(int[] time)