Solutions &amp; Explanations

Acceptance: 66.5%

#2022Easy

Convert 1D Array Into 2D Array

ArrayMatrixSimulation

Acceptance: 72.2%

#2026Easy

Low-Quality Problems

ArrayBit ManipulationHash Table

Acceptance: 84.3%

#2027Easy

Minimum Moves to Convert String

GreedyString

Acceptance: 58.4%

#2032Easy

Two Out of Three

Acceptance: 77.5%

#2037Easy

Minimum Number of Moves to Seat Everyone

ArrayCounting SortGreedy+1

Acceptance: 87.4%

#2042Easy

Check if Numbers Are Ascending in a Sentence

Acceptance: 73.6%

#2047Easy

Number of Valid Words in a Sentence

ArrayCountingHash Table+1

Acceptance: 31.0%

#2053Easy

Kth Distinct String in an Array

Acceptance: 82.1%

#2057Easy

Smallest Index With Equal Value

Acceptance: 73.8%

#2062Easy

Count Vowel Substrings of a String

Hash TableString

Acceptance: 73.6%

#2068Easy

Check Whether Two Strings are Almost Equivalent

CountingHash TableString

Acceptance: 64.5%

#2072Easy

The Winner University

Acceptance: 74.5%

#2073Easy

Time Needed to Buy Tickets

ArrayQueueSimulation

Acceptance: 72.9%

#2078Easy

Two Furthest Houses With Different Colors

ArrayGreedy

Acceptance: 71.8%

#2082Easy

The Number of Rich Customers

ArrayCountingHash Table+1

Acceptance: 77.3%

#2085Easy

Count Common Words With One Occurrence

Acceptance: 73.3%

#2089Easy

Find Target Indices After Sorting Array

ArrayBinary SearchSorting

Acceptance: 77.9%

#2094Easy

Finding 3-Digit Even Numbers

ArrayEnumerationHash Table+1

Acceptance: 78.8%

#2099Easy

Find Subsequence of Length K With the Largest Sum

ArrayHash TableHeap (Priority Queue)+1

Acceptance: 57.4%

#2103Easy

Rings and Rods

Hash TableString

Acceptance: 81.5%

#2108Easy

Find First Palindromic String in the Array

ArrayStringTwo Pointers

Acceptance: 83.9%

#2114Easy

Maximum Number of Words Found in Sentences

ArrayString

Acceptance: 86.6%

#2119Easy

A Number After a Double Reversal

Math

Acceptance: 82.7%

#2124Easy

Check if All A's Appears Before All B's

Acceptance: 73.2%

#2129Easy

Capitalize the Title

ArrayHash TableSimulation+1

Acceptance: 68.5%

#2133Easy

Check if Every Row and Column Contains All Numbers

ArrayHash TableMatrix

Acceptance: 54.0%

#2138Easy

Divide a String Into Groups of Size k

SimulationString

Acceptance: 77.1%

#2144Easy

Minimum Cost of Buying Candies With Discount

ArrayGreedySorting

Acceptance: 71.5%

#2148Easy

Count Elements With Strictly Smaller and Greater Elements

ArrayCountingSorting

Acceptance: 59.9%

#2154Easy

Keep Multiplying Found Values by Two

Acceptance: 75.1%

#2160Easy

Minimum Sum of Four Digit Number After Splitting Digits

GreedyMathSorting

Acceptance: 86.2%

#2164Easy

Sort Even and Odd Indices Independently

ArraySorting

Acceptance: 63.2%

#2169Easy

Count Operations to Obtain Zero

MathSimulation

Acceptance: 79.8%

#2176Easy

Count Equal and Divisible Pairs in an Array

ArrayStringString Matching

Acceptance: 84.0%

#2180Easy

Count Integers With Even Digit Sum

MathSimulation

Acceptance: 70.5%

#2185Easy

Counting Words With a Given Prefix

Acceptance: 84.5%

#2190Easy

Most Frequent Number Following Key In an Array

ArrayCountingHash Table

Acceptance: 59.6%

#2194Easy

Cells in a Range on an Excel Sheet

Acceptance: 83.9%

#2200Easy

Find All K-Distant Indices in an Array

ArrayTwo Pointers

Acceptance: 77.4%

#2205Easy

The Number of Users That Are Eligible for Discount

ArrayBit ManipulationCounting+1

Acceptance: 50.3%

#2206Easy

Divide Array Into Equal Pairs

Acceptance: 79.2%

#2210Easy

Count Hills and Valleys in an Array