Given an unsorted array of integers, find the length of the longest consecutive elements sequence.

Given an unsorted array, find the maximum difference between the successive elements in its sorted form.

Given an array nums, there is a sliding window of size k which is moving from the very left of the array to the very right. You can only see the _k_numbers in t...

Given an integer array nums, find the contiguous subarray (containing at least one number) which has the largest sum and return its sum.

Given an integer array nums, find the contiguous subarray within an array (containing at least one number) which has the largest product.

Given two sorted integer arrays nums1 and nums2, merge nums2 into nums1 as one sorted array.

Given an array nums, write a function to move all 0's to the end of it while maintaining the relative order of the non-zero elements.

80、Remove Duplicates from Sorted Array II 相似题型： 26

Given an array of integers, find if the array contains any duplicates.

Given an array of integers and an integer k, find out whether there are two distinct indices i and j in the array such that nums[i] = nums[j] and the absolute d...