important; opacity:1; cursor:pointer; font-size:0; color:#ffffff; background-color:rgba(255,255,255,0.1); text-align:center; transform:none !important; transition:all 0.3s ease-in-out 0s}@media (max-width:768px){.dotdigital.tparrows{top:40% !important}}.dotdigital.tparrows.tp-right...
If we are given a BST where every node hasparent pointer, then LCA can be easily determined by traversing up using parent pointer and printing the first intersecting node. We can solve this problem using BST properties. We canrecursively traversethe BST from root. The main idea of the soluti...
java.lang.NullPointerException – How to handle Null Pointer Exception In Java, a special null value can be assigned to an object’s reference and denotes that the object is currently pointing to unknown piece of data. A NullPointerException is thrown when an application is trying to use or ...
Continue reading»
map2.put("c",4); map2.forEach((key, value) -> map1.merge(key, value, Integer::sum)); Counting Occurrences You can usemerge()to count the occurrences of elements in a collection: 1 2 3 4 5 Map<Character, Integer> charCounts =newHashMap<>(); ...
{//Base caseif(root ==NULL)returnroot;//Convert to DLL using bintree2listUtil()root =bintree2listUtil(root);//bintree2listUtil() returns root node of the converted//DLL. We need pointer to the leftmost node which is//head of the constructed DLL, so move to the leftmost nodewhile(...
[Question #1 – Smart Pointer – Standard library]What happens when a std::unique_ptr is passed by value to a function? For example, in this code snippet?#include <memory> auto f(std::unique_ptr<int> ptr) { *ptr = 42; return ptr; } int main() { auto ptr = std::make_unique<...
:warning: Mirrored from https://gitea.zoemp.be/sansguidon/bookmarks ! :bookmark: +5K awesome resources for geeks and software crafters :beer: - GitHub - SansGuidon/bookmarks: :warning: Mirrored from https://gitea.zoemp.be/sansguidon/bookmarks ! +5K awes
and ?.let {} for Null Safety Kotlin provides robust null safety features that help developers avoid NullPointerException while maintaining clean and readable code. Let us delve… Read More » Yatin BatraApril 14th, 2025 0 81 Kotlin: Read, Write, Modify, Delete & List Files Kotlin is ...
Programmers have spent endless hours trying to rectify one of the most common errors yet the most dangerous – namely, Null Pointer Exceptions. Null pointer exceptions can cause unexpected outages in our applications, and are very difficult to detect up-front. ...