encoding-decoding

34 posts

Last Updated: 31 January 2024

Base64 encoding allows encoding binary data as text strings for safe transport, at the cost of larger data size. It is commonly used when th ...read more

Java

Java-Strings

Java Programs

encoding-decoding

Picked

Java Examples

Text File Compression And Decompression Using Huffman Coding

Last Updated: 10 May 2024

Text files can be compressed to make them smaller and faster to send, and unzipping files on devices has a low overhead. The process of enco...read more

Encrypt given Array in single digit using inverted Pascal Triangle

Last Updated: 30 March 2023

Given an array arr[] of length N (N 1)containing positive integers, the task is to encrypt the numbers of the array into a single digit usi...read more

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Program to perform a letter frequency attack on a monoalphabetic substitution cipher

Last Updated: 30 January 2023

Given a string S of size N representing a monoalphabetic cipher, the task is to print the top five possible plain texts that can be decrypte ...read more

Implementation of Vernam Cipher or One Time Pad Algorithm

Last Updated: 30 October 2023

One Time Pad algorithm is the improvement of the Vernam Cipher, proposed by An Army Signal Corp officer, Joseph Mauborgne. It is the only av ...read more

Technical Scripter 2020

DSA

Decode the string encoded with the given algorithm

Last Updated: 31 May 2021

Given a decoded string str which was decoded with the following encoding algorithm:Write down the middle character of the string then delete ...read more

Find k-th character of decrypted string | Set - 2

Last Updated: 21 April 2021

Given an encoded string where repetitions of substrings are represented as substring followed by count of substrings. For example, if encryp ...read more

Strings

Data Structures

encoding-decoding

String-Run Length Encoding

DSA

Basic Type Base64 Encoding and Decoding in Java

Last Updated: 18 October 2021

Base 64 is an encoding scheme that converts binary data into text format so that encoded textual data can be easily transported over network ...read more

Morse Code Implementation

Last Updated: 18 April 2023

Morse code is a method of transmitting text information as a series of on-off tones, lights, or clicks that can be directly understood by a ...read more

Strings

encoding-decoding

DSA

Polybius Square Cipher

Last Updated: 12 August 2024

A Polybius Square is a table that allows someone to convert letters into numbers. To make the encryption little harder, this table can be ra...read more

Encryption vs Encoding vs Hashing

Last Updated: 27 June 2023

Pre-Requisite: Encryption, Encoding, Hashing.Encryption, Encoding, and Hahsing are similar kinds of things and have little difference betwee...read more

misc

encoding-decoding

DSA

Move To Front Data Transform Algorithm

Last Updated: 29 March 2023

What is the MTF transform?The MTF (Move to Front) is a data transformation algorithm that restructures data in such a way that the transform ...read more

Encoding a word into Pig Latin

Last Updated: 22 July 2022

Design a program to take a word as an input, and then encode it into Pig Latin. A Pig Latin is an encrypted word in English, which is genera ...read more

Strings

encoding-decoding

DSA

Efficient Huffman Coding for Sorted Input | Greedy Algo-4

Last Updated: 06 November 2023

We recommend to read following post as a prerequisite for this.Greedy Algorithms | Set 3 (Huffman Coding)Time complexity of the algorithm di ...read more

Huffman Coding | Greedy Algo-3

Last Updated: 22 April 2025

Huffman coding is a lossless data compression algorithm. The idea is to assign variable-length codes to input characters, lengths of the ass...read more

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