Automated Correctness Checking Using Random Input and Brute Force Oracles
A common technique to catch logical errors in a efficient algorithm is to compare its output against a slower brute-force implementation on many small, random generated test cases. The setup below uses the least common multiple (LCM) of two integers as the target problem.
Scripts and their roles
All components are implemented as standalone Pyth ...
Posted on Thu, 27 Aug 2026 16:32:52 +0000 by BinaryStar
Algorithm Solutions for Competitive Programming Problems
Modular Division of Large Numbers
This solution demonstrates how to perform division operations with large numbers under a specific modulus using Fermat's Little Theorem. The approach converts string representations of numbers into numerical arrays and applies modular arithmetic properties.
#include <iostream>
#include <cstdio>
#inc ...
Posted on Tue, 14 Jul 2026 17:29:01 +0000 by modcar