Lexicographically Smallest String After Substring Operation

Linked List Frequency

Logical OR of Two Binary Grids Represented as Quad-Trees

Lonely Pixel II

Long Pressed Name

Longer Contiguous Segments of Ones than Zeros

Longest Alternating Subarray

Longest Common Subsequence Between Sorted Arrays

Longest Common Suffix Queries

Longest Palindromic Subsequence II