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Hash-Table

Minimum Operations to Make the Array Alternating

Minimum Seconds to Equalize a Circular Array

November 29, 2024 · 5 min · TagsList of tags for the post  array ·  hash-table ·  leetcode ·  Last updated: Aug 2, 2025

Minimum Total Cost to Make Arrays Unequal

Most Frequent Even Element

Most Frequent Number Following Key In an Array

Number of Black Blocks

Number of Different Integers in a String

November 29, 2024 · 4 min · TagsList of tags for the post  hash-table ·  leetcode ·  string ·  Last updated: Aug 2, 2025

Number of Distinct Averages

Number of Good Pairs

Number of Good Ways to Split a String

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