Given the root of a binary tree, return the level order traversal of its nodes' values. (i.e., from left to right, level by level).
Given an integer array nums and an integer k, return the kth largest element in the array.
Note that it is the kth largest element in the sorted order, not the kth distinct element.
You are given two binary trees root1 and root2.
Imagine that when you put one of them to cover the other, some nodes of the two trees are overlapped while the others are not. You need to merge the two trees into a new binary tree. The merge rule is that if two nodes overlap, then sum node values up as the new value of the merged node. Otherwise, the NOT null node will be used as the node of the new tree.
Return the merged tree.
Given an array of distinct integers candidates and a target integer target, return a list of all unique combinations of candidates where the chosen numbers sum to target. You may return the combinations in any order.
Given an array of strings strs, group the anagrams together. You can return the answer in any order.
An Anagram is a word or phrase formed by rearranging the letters of a different word or phrase, typically using all the original letters exactly once.
package org.springframework.security.crypto.password;
public interface PasswordEncoder {
String encode(CharSequence rawPassword);
boolean matches(CharSequence rawPassword, String encodedPassword);
default boolean upgradeEncoding(String encodedPassword) {
return false;
}
}