#include<iostream>#include<cstdlib>usingnamespacestd;constunsignedlonglonginfinity =-1ULL;voidmerge(int* A,intp,constintq,constintr){constintn_1=q-p+1;constintn_2=r-q;int* L =newint[n_1+1];int* R =newint[n_2+1]; L[n_1]=infinity; R[n_2]=infinity;for(inti =0; i < n...
Merge Sort is one of the most popular sorting algorithms that is based on the principle of Divide and Conquer Algorithm. Here, a problem is divided into multiple sub-problems. Each sub-problem is solved individually. Finally, sub-problems are combined to form the final solution. Merge Sort ...
length; // 循环不变量:[0, i) 有序,且该区间里所有元素就是最终排定的样子 for (int i = 0; i < len - 1; i++) { // 选择区间 [i, len - 1] 里最小的元素的索引,交换到下标 i int minIndex = i; for (int j = i + 1; j < len; j++) { if (nums[j] < nums[minIndex]...
这种题都采用倒序的方式吧,从大到小添加。要注意的是一些小细节:比如for(int i = m+n-1; i >=0; i--){}, 在for语句里面已经有i--了,循环里面就不需要再写一个i--了 1publicclassSolution {2publicvoidmerge(intA[],intm,intB[],intn) {3intj = m - 1, k = n - 1;4for(inti = m+...
Although Heap Sort has O(n log n) time complexity even for the worst case, it doesn't have more applications ( compared to other sorting algorithms like Quick Sort, Merge Sort ). However, its underlying data structure, heap, can be efficiently used if we want to extract the smallest (or...
for (int i=0; i<n-1; i++) if (arr[i] > arr[i+1]) swap(arr[i], arr[i+1]); // Recursively sort the remaining n-1 elements bubbleSortRecursive(arr, n-1); } Is the Bubble Sort algorithm stable? A sorting algorithm is said to be stable when the relative order of equal...
O(n+k). O(n) is the complexity for making the buckets and O(k) is the complexity for sorting the elements of the bucket using algorithms having linear time complexity at the best case. Average Case Complexity: O(n) It occurs when the elements are distributed randomly in the array. ...
1/**2* Definition for singly-linked list.3* public class ListNode {4* int val;5* ListNode next;6* ListNode(int x) { val = x; }7* }8*/9classSolution {10publicListNode mergeTwoLists(ListNode l1, ListNode l2) {11ListNode dummy =newListNode(-1);12ListNode cur =dummy;13while(l1 !
Leetcode: Merge k Sorted List 参看别人的思路,类似MergeSort的思路,思路是先分成两个子任务,然后递归求子任务,最后回溯回来。这个题目也是这样,先把k个list分成两半,然后继续划分,直到剩下两个list就合并起来,合并时会用到Merge Two Sorted Lists这道题。
This project contains my implementations of sorting and searching algorithms, as well as string manipulation exercises, based on the 'Data Structures 3' course from Code with Mosh. string-manipulationbubble-sortinsertion-sortsorting-algorithmsselection-sortsearching-algorithmsbinary-searchbucket-sortmerge-sor...