摘要：
package LeetCode_1331 import java.util.* import kotlin.collections.HashMap /** * 1331. Rank Transform of an Array * https://leetcode.com/problems/rank 阅读全文
摘要：
package LeetCode_1646 /** * 1646. Get Maximum in Generated Array * https://leetcode.com/problems/get-maximum-in-generated-array/ * * You are given an 阅读全文
摘要：
package LeetCode_1647 import java.util.* import kotlin.collections.HashMap /** * 1647. Minimum Deletions to Make Character Frequencies Unique * https: 阅读全文