摘要：
package LeetCode_1664 /** * 1664. Ways to Make a Fair Array * https://leetcode.com/problems/ways-to-make-a-fair-array/ * You are given an integer arra 阅读全文
摘要：
import java.util.concurrent.atomic.AtomicInteger /** * This problem was asked by Microsoft. Implement the singleton pattern with a twist. First, inste 阅读全文