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Problems

20 problems

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Prefix SumArray447String248Hash Table189Math173Database113Sorting100Simulation93Two Pointers70Counting69Bit Manipulation54Greedy51Matrix41Tree40Depth-First Search39Binary Tree37All topics

Easy · With video · 20 results

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TitleSolutionAcceptDifficultyTopics
303. Range Sum Query - ImmutableVideo
Solution73.5%Easy
Array, Design +1· 8 companies
724. Find Pivot IndexVideo
Solution64.2%Easy
Array, Prefix Sum· 18 companies
1413. Minimum Value to Get Positive Step by Step SumVideo
Solution65.1%Easy
Array, Prefix Sum· 9 companies
1422. Maximum Score After Splitting a StringVideo
Solution65.1%Easy
Prefix Sum, String· 3 companies
1480. Running Sum of 1d ArrayVideo
Solution86.9%Easy
Array, Prefix Sum· 6 companies
1588. Sum of All Odd Length SubarraysVideo
Solution84.0%Easy
Array, Math +1· 3 companies
1732. Find the Highest AltitudeVideo
Solution84.7%Easy
Array, Prefix Sum· 7 companies
1854. Maximum Population YearVideo
Solution64.4%Easy
Array, Counting +1· 7 companies
1893. Check if All the Integers in a Range Are CoveredVideo
Solution51.4%Easy
Array, Hash Table +1· 3 companies
1991. Find the Middle Index in ArrayVideo
Solution70.5%Easy
Array, Prefix Sum· 4 companies
2389. Longest Subsequence With Limited SumVideo
Solution73.5%Easy
Array, Binary Search +3· 4 companies
2485. Find the Pivot IntegerVideo
Solution83.8%Easy
Math, Prefix Sum· 3 companies
2574. Left and Right Sum DifferencesVideo
Solution89.5%Easy
Array, Prefix Sum· 4 companies
2848. Points That Intersect With CarsVideo
Solution73.4%Easy
Array, Hash Table +1· 1 company
3028. Ant on the BoundaryVideo
Solution74.6%Easy
Array, Prefix Sum +1· 3 companies
3354. Make Array Elements Equal to ZeroVideo
Solution68.3%Easy
Array, Prefix Sum +1· 5 companies
3364. Minimum Positive Sum Subarray Video
Solution45.6%Easy
Array, Prefix Sum +1
3427. Sum of Variable Length SubarraysVideo
Solution85.6%Easy
Array, Prefix Sum· 2 companies
3432. Count Partitions with Even Sum DifferenceVideo
Solution85.2%Easy
Array, Math +1· 5 companies
3707. Equal Score SubstringsVideo
Solution56.7%Easy
Prefix Sum, String
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