Count Substrings With K-Frequency Characters I

Count Substrings with Only One Distinct Letter

November 29, 2024 · 4 min ·  Tags List of tags for the post   leetcode ·  math ·  string ·  Last updated: Aug 2, 2025

Count the Number of Good Subsequences

Count the Number of Powerful Integers

Count the Number of Vowel Strings in Range

Decode the Slanted Ciphertext

November 29, 2024 · 6 min ·  Tags List of tags for the post   leetcode ·  simulation ·  string ·  Last updated: Aug 2, 2025

Decremental String Concatenation

Design a Todo List

Design Log Storage System

Destination City

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