The subset sum problem asks: given a set of integers and a target sum, find all subsets of the set whose elements add up to the target. It is a classic application of backtracking — a systematic method that builds candidates incrementally and abandons a partial candidate (“prunes”) as soon as it determines the candidate …
Breadth First Search (BFS) is a graph traversal algorithm that explores nodes level by level — starting from a source, it visits all immediate neighbors first, then their neighbors, and so on. Because of this level-by-level behavior, BFS always finds the shortest path in an unweighted graph. It is used in GPS navigation, social network …
C Program to find the Inverse of a Matrix. To find the Matrix Inverse, matrix should be a square matrix and Matrix Determinant is should not Equal to Zero. if A is a Square matrix and |A|!=0, then AA’=I (I Means Identity Matrix). Read more about C Programming Language . /************************************************************ You can use all …
The 0-1 knapsack problem asks: given a set of items each with a weight and a value, and a knapsack with a maximum weight capacity, which items should you pack to maximize the total value? Each item can be taken once (0-1) — you cannot take a fraction. This is a classic dynamic programming problem …
C Program to convert a binary number into its equivalent Decimal. In binary number system or base-2 system numeric valuer are represented by using two different symbols 0 and 1. The binary number system is a positional notation with a radix of 2. Read more here: What are binary, octal, and hexadecimal notation? This program converts …
Counting the characters in a file is the “hello world” of C file handling — but done properly it teaches four things at once: the fgetc() read loop, why ch must be an int and not a char, the <ctype.h> classification functions, and word counting with a state flag. This version is a miniature wc: …