Package g0401_0500.s0493_reverse_pairs

Class Solution

java.lang.Object

g0401_0500.s0493_reverse_pairs.Solution

public class Solution
extends Object

493 - Reverse Pairs\. Hard Given an integer array `nums`, return _the number of **reverse pairs** in the array_. A reverse pair is a pair `(i, j)` where `0 <= i < j < nums.length` and `nums[i] > 2 * nums[j]`. **Example 1:** **Input:** nums = [1,3,2,3,1] **Output:** 2 **Example 2:** **Input:** nums = [2,4,3,5,1] **Output:** 3 **Constraints:** * 1 <= nums.length <= 5 * 104 * -231 <= nums[i] <= 231 - 1

Constructor Summary

Constructors

Constructor	Description
Solution()

Method Summary

Modifier and Type	Method	Description
int	reversePairs(int[] nums)

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

reversePairs

public int reversePairs(int[] nums)