985. Sum of Even Numbers After Queries-查询后的偶数和
We have an array A of integers, and an array queries of... » 阅读全文
680. Valid Palindrome II-验证回文字符串 Ⅱ
Given a non-empty string s, you may delete at most one ... » 阅读全文
671. Second Minimum Node In a Binary Tree-二叉树中第二小的节点
Given a non-empty special binary tree consisting of nod... » 阅读全文
643. Maximum Average Subarray I-子数组最大平均数 I
Given an array consisting of n integers, find the conti... » 阅读全文
598. Range Addition II-范围求和 II
You are given an m x n matrix M initialized with all 0&... » 阅读全文
572. Subtree of Another Tree-另一个树的子树
Given two non-empty binary trees s and t, check whether... » 阅读全文
1800. Maximum Ascending Subarray Sum-最大升序子数组和
Given an array of positive integers nums, return the ma... » 阅读全文
1796. Second Largest Digit in a String-字符串中第二大的数字
Given an alphanumeric string s, return the second large... » 阅读全文
1790. Check if One String Swap Can Make Strings Equal-仅执行一次字符串交换能否使两个字符串相等
You are given two strings s1 and s2 of equal length. A ... » 阅读全文
1779. Find Nearest Point That Has the Same X or Y Coordinate-找到最近的有相同 X 或 Y 坐标的点
You are given two integers, x and y, which represent yo... » 阅读全文