c data-structure algorithms data-structures data-structures-algorithms dsa algorithms-and-data-structures data-structures-and-algorithms data-structures-c c-algorithms c-data-structures algorithms-c linked-list-in-c dsa-learning-series c-data-structures-and-algorithms data-structures-in-c dsa-in-c dsa-c linked-list-c singly-linked-list-in-c