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2007. Find Original Array From Doubled Array An integer array original is transformed into a doubled array changed by appending twice the value of eve 阅读全文
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378. Kth Smallest Element in a Sorted Matrix Solved Medium Topics Companies Given an n x n matrix where each of the rows and columns is sorted in asce 阅读全文
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149. Max Points on a Line Given an array of points where points[i] = [xi, yi] represents a point on the X-Y plane, return the maximum number of points 阅读全文
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2484. Count Palindromic Subsequences Given a string of digits s, return the number of palindromic subsequences of s having length 5. Since the answer 阅读全文
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31. Next Permutation Medium 168634309Add to ListShare A permutation of an array of integers is an arrangement of its members into a sequence or linear 阅读全文
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1235. Maximum Profit in Job Scheduling Hard 539662Add to ListShare We have n jobs, where every job is scheduled to be done from startTime[i] to endTim 阅读全文
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Given an array of n elements, where each element is at most k away from its target position, you need to sort the array optimally. Example 1: Input: n 阅读全文
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273. Integer to English Words Hard 27865945Add to ListShare Convert a non-negative integer num to its English words representation. Example 1: Input: 阅读全文
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7. Reverse Integer Medium Given a signed 32-bit integer x, return x with its digits reversed. If reversing x causes the value to go outside the signed 阅读全文
