During March 2025, Rajender developed a cross-language solution for LeetCode problem 3394 in the doocs/leetcode repository, focusing on grid cutting feasibility. He implemented the solver in Python, Java, C++, and Go, applying a line sweep algorithm that sorts coordinate points and counts line intersections to determine valid grid partitions. The approach leveraged core algorithmic and data structure skills, resulting in a reusable pattern for future multi-language problem coverage. Rajender’s work demonstrated depth in algorithm design and adaptability across languages, providing a foundation for expanding the repository’s language support and accelerating the addition of new solutions with consistent methodology.