2026-03 Monthly Summary for DaleStudy/leetcode-study focused on delivering a consolidated array analytics toolkit and strengthening data validation capabilities. Key feature delivered this month is the Advanced Array Analysis Utilities, which unifies four core utilities (duplicate detection for data validation, two-sum solver, top-k frequent elements, and longest consecutive sequence) to accelerate data processing and generate faster insights. No explicit major bug fixes were reported this month; stabilization efforts were incorporated as part of the feature rollout to ensure reliability during the consolidation. Impact highlights include improved data validation speed, richer analytics capabilities, and a maintainable, modular codebase ready for future enhancements. The work lays a foundation for broader analytics workflows and data quality checks across projects that rely on array-based data processing.