Docker
In this post, I will explain a very indispensable tool for developers. Docker is a tool that allows developers to build, deploy, and run applications using c...
Generating permutations
In this post, we will discuss the problem of generating all permutations of a given set of elements. A permutation is an arrangement of elements in a specific order. For example, the permutations of the set {1, 2, 3} are {1, 2, 3}, {1, 3, 2}, {2, 1, 3}, {2, 3, 1}, {3, 1, 2}, and {3, 2, 1}. The number of permutations of a set of n elements is n!.
1. The brute force algorithm
The brute force algorithm is the simplest algorithm to generate all permutations of a set of elements. It works by checking all possible arrangements of elements to find the permutations. The algorithm has a time complexity of O(n!), where n is the number of elements. The brute force algorithm is not practical for large datasets, but it is useful for small datasets to verify the correctness of other algorithms.
Here is the brute force algorithm to generate all permutations of a set of elements:
void permute(int[] a, int k){
if (k == a.length){
System.out.println(Arrays.toString(a));
} else {
for (int i = k; i < a.length; i++){
int temp = a[k];
a[k] = a[i];
a[i] = temp;
permute(a, k + 1);
temp = a[k];
a[k] = a[i];
a[i] = temp;
}
}
}
2024
Generating permutations
In this post, we will discuss the problem of generating all permutations of a given set of elements. A permutation is an arrangement of elements in a specifi...
The Convex Hull Problem
The convex hull problem is a problem in computational geometry. It is about finding the smallest convex polygon that contains a given set of points. The conv...
2023
CS3401 Projects 1445 1st semester
Project 1: Project management system The aim of this project is to implement a program (java or python) that manages a list of tasks in a project. The pr...
2022
List of projects for CS3401
Use the form link to choose a project :