Gopythor

Given an integer array nums, move all 0's to the end of it while maintaining the relative order of the non-zero elements. Note that you must do this in-place without making a copy of the array. Example 1: Input: nums = [0,1,0,3,12] Output: [1,3,12,0,0] Example 2: Input: nums = [0] Output: [0] Constraints: 1

Go/Leet Code 2022. 3. 10. 20:20

Code Java public int removeDuplicates(int[] nums) { // Check for edge cases. if (nums == null) { return 0; } // Use the two pointer technique to remove the duplicates in-place. // The first element shouldn&#39;t be touched; it&#39;s already in its correct place. int writePointer = 1; // Go through each element in the Array. for (int readPointer = 1; readPointer < nums.length; readPointer++) { //..

Go/Leet Code 2022. 3. 10. 17:27

My code func removeDuplicates(nums []int) int { if nums == nil { return 0 } k := 0 for _, v := range nums { if v != nums[k] { k++ nums[k] = v } } return k + 1 } I used for loop value output. It starts from array[0]. So if it will be different with value, k will be increased and value will be input there. Simple Code. sample 0 ms submission func removeDuplicates(nums []int) int { if len(nums) < 2..

Go/Leet Code 2022. 3. 6. 22:00

The nested loop Code Java class Solution { public int removeDuplicates(int[] nums) { // The initial length is simply the capacity. int length = nums.length; // Assume the last element is always unique. // Then for each element, delete it iff it is // the same as the one after it. Use our deletion // algorithm for deleting from any index. for (int i = length - 2; i >= 0; i--) { if (nums[i] == num..

Go/Leet Code 2022. 3. 6. 20:14

Given an array arr, replace every element in that array with the greatest element among the elements to its right, and replace the last element with -1. After doing so, return the array. Example 1: Input: arr = [17,18,5,4,6,1] Output: [18,6,6,6,1,-1] Explanation: - index 0 --> the greatest element to the right of index 0 is index 1 (18). - index 1 --> the greatest element to the right of index 1..

Go/Leet Code 2022. 3. 5. 20:43

What are in-place array operations? Given an Array of integers, return an Array where every element at an even-indexed position is squared. Input: array = [9, -2, -9, 11, 56, -12, -3] Output: [81, -2, 81, 11, 3136, -12, 9] Explanation: The numbers at even indexes (0, 2, 4, 6) have been squared, whereas the numbers at odd indexes (1, 3, 5) have been left the same. Not in-place Code Java public in..

Go/Leet Code 2022. 3. 5. 18:52

Given an array of integers arr, return true if and only if it is a valid mountain array. Recall that arr is a mountain array if and only if: arr.length >= 3 There exists some i with 0 arr[i + 1] > ... > arr[arr.length - 1] Constraints: 1 arr[i] { goingUp = false down++ } else { up++ } } else { if arr[i-1] < arr[..

Go/Leet Code 2022. 3. 4. 02:03

Search in an Array Linear Search The time complexity for a linear search is O(N)O(N) Edge case refers to a problem that occurs when the value of data processed by the algorithm exceeds a certain range according to the characteristics of the algorithm. For example, a problem may occur when the value of the variable called fixnum exceeds the range of -128 to 127. https://kathak33.tistory.com/19 Le..

Go/Leet Code 2022. 3. 2. 19:19