I am trying to make a quick program that checks if the elements of an array can represent a premutation. The logic I use could be improved but my main problem is that v is not loaded correctly(I only get 1s). my code“` #include <iostream> using namespace std; int* readPerm(int n) { int v[n]; int ..
Category : pointers
#include <stdio.h> #include <stdint.h> struct s1 { uint8_t a; uint16_t b; uint8_t c; }; struct s2 { uint8_t d; uint8_t e; }; int main() { struct s1 *d1; struct s2 *d2; d1->a = 1; d1->b = 2; d1->c = 3; d2->d =4; d2->e =5; &d1->b = d2; return 0; } Why doesn’t &d1->b = d2; ..
I understand how linked lists work but this particular code is tough to grasp for me. Its this leetcode problem (basically we are given address of a node which is to be deleted) whose solution can be implemented like the code snippet below: class Solution { public: void deleteNode(ListNode* node) { ListNode* next = node->next; ..
I am trying to make a tree data structure with c++. Originally I tested with int data, it was going fine. However, when I try to use a string data type, it keeps showing an unhandled exception. It said read access violation, this was 0x5D. I don’t know what is causing the error. The complete ..
I hope the wording on title is correct. I have such an object in my header file std::vector<std::vector<float>> *sub; //! and in the main.cxx file it is defined as sub=0; mySetBranchAddress(tree,"sub",&sub); I want to iterate over and cout everything in another cxx file and I tried for(uint subIdx=0; subIdx < main->sub->size(); subIdx++){ for(uint subIdx2=0; subIdx2 ..
i have issues with my programm. When i launch the programm,the console don’ t show the 2 numbers that it should ,instead it only shows this: Process returned -1073741819 (0xC0000005) execution time : 1.759 s This is my code: #include <stdio.h> #include <string.h> #include <stdlib.h> #include <iostream> Test(int* Ptr) { Ptr=(int*)malloc(8); if(Ptr==0) { printf("malloc errorn"); ..
LinkedList::LinkedList(const LinkedList &list) { Node* ptr = list.first; //pointer to first node list to copy first = new Node(ptr->data); //first points to a new node using data from list to copy Node* curr = first; //current node equal to first to iterate and create new nodes through it Node* temp; while(ptr != nullptr){ ptr=ptr->next; //update ..
char* anagram( char* input1, char* input2) { } Can anyone explain. What would be the form of return of this function, and what form of argument is passesd to it, could it be a char pointer or an array of characters? Source: Windows Que..
We have an array of distinct positive integers. We have to find the number of pairs in the array such that all the elements between those pairs present in the array are smaller than the pair elements itself. For e.g. if the array is [7 3 2 1 4 6 5] then the output would ..
I’m new at c++ and I’m having some difficulty on passing an array to a function. I want to create an array of type Tableau (it initialize automatically at 4) and pass that array to another function, so passing distanceReste to calculReste. I want to be able to change the array inside the other function, ..
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