WebSo basically alternating between first and last element which was not sorted yet. ... every odd index of the result array is mapped with the last values of the initial array; Share. … WebApr 10, 2024 · A Computer Science portal for geeks. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions.
Find first and last positions of an element in a sorted array
WebDec 1, 2010 · For unsorted array there is not much we can do other than linear search. For sorted array you can do it in O(logN) using a slightly modified binary search:. Find the index of first occurrence of key, call it f. Find the index of last occurrence of key, call it l. If the key exists in the array l-f+1 is the answer.; Finding the first occurrence: WebMar 18, 2024 · If the array is infinite, that means we don’t have proper bounds to apply binary search. So in order to find position of key, first we find bounds and then apply binary search algorithm. ->if it is greater than high index element then copy high index in low index and double the high index. ->if it is smaller, then apply binary search on high ... find woodland mansion with seed
How to get indices of a sorted array in Python - Stack Overflow
WebSep 13, 2024 · The task is to sort the array in this given index range i.e., sort the elements of the array from arr [a] to arr [b] while keeping the positions of other elements intact and … WebMay 7, 2024 · Iterative method to find the leftmost element in the sorted array const first = (arr, value) => { let low = 0; let high = arr.length - 1; let result = -1; //keep looking for all … WebDec 28, 2024 · You have a sorted array, and you want get the first index and the last index of the matching occurrence of an element by a function in python. If there is no match, return [-1.-1]. If there is a match, return [first_index,last_index]. find woodstock