Motivation Digital circuits are often modeled as directed acyclic graphs. Given a boolean circuit and a vector of input values, the task is to compute the output values of every gate. A straightforward evaluation method is a topological traversal. This note presents structural techniques that can ac...
Configuring Icons in Qt 6.7.2 on Windows Using CMake Setting the Executable Icon Prepare an icon file named app_icon.ico. Create a resource script file named icon_resource.rc with the following content: IDI_ICON1 ICON "app_icon.ico" Add app_icon.ico and icon_resource.rc to your Qt Resource...
C++ offers a rich set of built-in operators to various computational tasks including arithmetic, logical, bitwise, and relational operations. A powerful feature allows these symbols to be redefined for user-defined types, enhancing readability and intuitive usage. Standard Operator Categories Arithm...
Memory Layout and the Role of Pointers A linked list orgnaizes data across dynamically allocated, non-contiguous blocks of heap memory. Its core is the pointer relationship between nodes, not the data itself. // Nodes are created at independent memory addresses Node* first = new Node(15); // address...
The Singleton pattern ensures that a class maintains only one instance throughout the lifecycle of an application and provides a unified global access point to that instance. This pattern is essential when a single point of control is required for shared resources, such as logging services, configur...
Two-Dimensional ArraysA two-dimensional array extends the concept of a one-dimensional array by adding a second dimension. While a one-dimensional array can be thought of as a single row of elements, a two-dimensional array organizes data in rows and columns, forming a matrix-like structure.Declarat...
Dynamic Memory Safety and Resource Menagement Heap allocation failures typically occur when dynamically acquired resources remain unreleased after use, often triggered by pointer reassignment, exceptional control flow, or mismatched allocation primitives. Effective mitigation relies on deterministic...
Consider the following code: #include <stdio.h> #include <list> #include <set> #include <algorithm> using namespace std; template <class S> void ls(S *s) { typename S::iterator it; it = s->begin(); printf("{ "); while (it!=s->end()) { int n= *it; printf(...
Vector Dynamic Array Container Initialization std::vector<int> numericVector; std::vector<double> floatingVector; std::vector<int> sizedVector(10); // 10 elements initialized to 0 std::vector<int> filledVector(10, 5); // 10 elements initialized to 5 std::vector<std::vector...
Binary Search (LeetCode 704) Binary search requires the input array to be sorted and typically contains unique elements to ensure the result is unambiguous. The algorithm reduces the search space by comparing the target with the middle element of the currrent interval. Approach 1: Closed Interval [l...