Find the Child Who Has the Ball After K Seconds

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

Find the Count of Monotonic Pairs I

Find the Count of Monotonic Pairs II

Find the Count of Numbers Which Are Not Special

Find the Derangement of An Array

Find The K-th Lucky Number

Find the Key of the Numbers

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

Find the Number of Ways to Place People I

Find the Number of Ways to Place People II

Find the Sum of Encrypted Integers

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