Description: LeetCode is an online platform for preparing technical coding interviews. It contains a large database of coding questions and allows users to practice and submit solutions to these questions, track progress, participate in contests, and more.
Type: software
Description: QtiPlot is an open-source data analysis and visualization software similar to OriginLab Origin software. It offers 2D and 3D plotting, statistical analysis tools, curve fitting, data manipulation, and Python scripting support.
Type: software
Pricing: Open Source