1370. Increasing Decreasing String-上升下降字符串
Given a string s. You should re-order the string using ... » 阅读全文
1365. How Many Numbers Are Smaller Than the Current Number-有多少小于当前数字的数字
Given the array nums, for each nums[i] find out how man... » 阅读全文
1360. Number of Days Between Two Dates-日期之间隔几天
Write a program to count the number of days between two... » 阅读全文
1356. Sort Integers by The Number of 1 Bits-根据数字二进制下 1 的数目排序
Given an integer array arr. You have to sort the intege... » 阅读全文
1351. Count Negative Numbers in a Sorted Matrix-统计有序矩阵中的负数
Given a m x n matrix grid which is sorted in non-increa... » 阅读全文
1346. Check If N and Its Double Exist-检查整数及其两倍数是否存在
Given an array arr of integers, check if there exists t... » 阅读全文
1342. Number of Steps to Reduce a Number to Zero-将数字变成 0 的操作次数
Given a non-negative integer num, return the number of ... » 阅读全文
1337. The K Weakest Rows in a Matrix-矩阵中战斗力最弱的 K 行
You are given an m x n binary matrix mat of 1’s (... » 阅读全文
1331. Rank Transform of an Array-数组序号转换
Given an array of integers arr, replace each element wi... » 阅读全文
1266. Minimum Time Visiting All Points-访问所有点的最小时间
On a 2D plane, there are n points with integer coordina... » 阅读全文