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Problems

54 problems

Has videoPremium onlyReset
Array447String249Hash Table190Math173Database113Sorting100Simulation93Counting70Two Pointers70Bit Manipulation54Greedy51Matrix41Tree40Depth-First Search39Binary Tree37All topics

Easy · 54 results

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TitleSolutionAcceptDifficultyTopics
67. Add BinaryVideo
Solution58.4%Easy
Bit Manipulation, Math +2· 17 companies
136. Single NumberVideo
Solution78.1%Easy
Array, Bit Manipulation· 15 companies
190. Reverse BitsVideo
Solution69.2%Easy
Bit Manipulation, Divide and Conquer· 9 companies
191. Number of 1 BitsVideo
Solution77.7%Easy
Bit Manipulation, Divide and Conquer· 11 companies
231. Power of TwoVideo
Solution50.5%Easy
Bit Manipulation, Math +1· 11 companies
266. Palindrome PermutationVideoPremium
Solution68.6%Easy
Bit Manipulation, Hash Table +1· 5 companies
268. Missing NumberVideo
Solution72.4%Easy
Array, Binary Search +4· 19 companies
338. Counting BitsVideo
Solution80.5%Easy
Bit Manipulation, Dynamic Programming· 9 companies
342. Power of FourVideo
Solution52.5%Easy
Bit Manipulation, Math +1· 8 companies
389. Find the DifferenceVideo
Solution60.8%Easy
Bit Manipulation, Hash Table +2· 6 companies
401. Binary WatchVideo
Solution65.9%Easy
Backtracking, Bit Manipulation· 5 companies
405. Convert a Number to HexadecimalVideo
Solution54.8%Easy
Bit Manipulation, Math· 6 companies
461. Hamming DistanceVideo
Solution76.7%Easy
Bit Manipulation· 4 companies
476. Number ComplementVideo
Solution70.3%Easy
Bit Manipulation· 5 companies
645. Set MismatchVideo
Solution43.4%Easy
Array, Bit Manipulation +2· 7 companies
693. Binary Number with Alternating BitsVideo
Solution69.8%Easy
Bit Manipulation· 5 companies
762. Prime Number of Set Bits in Binary RepresentationVideo
Solution78.7%Easy
Bit Manipulation, Math· 2 companies
832. Flipping an ImageVideo
Solution83.6%Easy
Array, Bit Manipulation +3· 6 companies
868. Binary GapVideo
Solution74.2%Easy
Bit Manipulation· 6 companies
1009. Complement of Base 10 IntegerVideo
Solution63.3%Easy
Bit Manipulation· 5 companies
1018. Binary Prefix Divisible By 5Video
Solution53.5%Easy
Array, Bit Manipulation· 3 companies
1342. Number of Steps to Reduce a Number to ZeroVideo
Solution86.0%Easy
Bit Manipulation, Math· 6 companies
1356. Sort Integers by The Number of 1 BitsVideo
Solution82.3%Easy
Array, Bit Manipulation +2· 4 companies
1486. XOR Operation in an ArrayVideo
Solution87.5%Easy
Bit Manipulation, Math· 2 companies
1684. Count the Number of Consistent StringsVideo
Solution88.1%Easy
Array, Bit Manipulation +3· 3 companies
1720. Decode XORed ArrayVideo
Solution87.3%Easy
Array, Bit Manipulation· 1 company
1763. Longest Nice SubstringVideo
Solution64.4%Easy
Bit Manipulation, Divide and Conquer +3· 4 companies
1863. Sum of All Subset XOR TotalsVideo
Solution90.1%Easy
Array, Backtracking +4· 5 companies
2032. Two Out of ThreeVideo
Solution77.5%Easy
Array, Bit Manipulation +1· 2 companies
2206. Divide Array Into Equal PairsVideo
Solution79.2%Easy
Array, Bit Manipulation +2· 5 companies
2220. Minimum Bit Flips to Convert NumberVideo
Solution88.0%Easy
Bit Manipulation· 7 companies
2351. First Letter to Appear TwiceVideo
Solution74.9%Easy
Bit Manipulation, Counting +2· 2 companies
2506. Count Pairs Of Similar StringsVideo
Solution73.7%Easy
Array, Bit Manipulation +3· 4 companies
2595. Number of Even and Odd BitsVideo
Solution73.4%Easy
Bit Manipulation· 1 company
2859. Sum of Values at Indices With K Set BitsVideo
Solution86.0%Easy
Array, Bit Manipulation· 1 company
2869. Minimum Operations to Collect ElementsVideo
Solution62.2%Easy
Array, Bit Manipulation +1· 1 company
2917. Find the K-or of an ArrayVideo
Solution72.1%Easy
Array, Bit Manipulation· 1 company
2932. Maximum Strong Pair XOR IVideo
Solution76.0%Easy
Array, Bit Manipulation +3· 1 company
2980. Check if Bitwise OR Has Trailing ZerosVideo
Solution71.2%Easy
Array, Bit Manipulation· 1 company
3095. Shortest Subarray With OR at Least K IVideo
Solution44.9%Easy
Array, Bit Manipulation +1· 1 company
3158. Find the XOR of Numbers Which Appear TwiceVideo
Solution78.9%Easy
Array, Bit Manipulation +1· 2 companies
3173. Bitwise OR of Adjacent ElementsVideoPremium
Solution94.8%Easy
Array, Bit Manipulation· 1 company
3199. Count Triplets with Even XOR Set Bits IVideoPremium
Solution83.3%Easy
Array, Bit Manipulation· 1 company
3226. Number of Bit Changes to Make Two Integers EqualVideo
Solution63.4%Easy
Bit Manipulation· 1 company
3304. Find the K-th Character in String Game IVideo
Solution81.6%Easy
Bit Manipulation, Math +2· 5 companies
3314. Construct the Minimum Bitwise Array IVideo
Solution85.3%Easy
Array, Bit Manipulation· 5 companies
3370. Smallest Number With All Set BitsVideo
Solution80.4%Easy
Bit Manipulation, Math· 3 companies
3674. Minimum Operations to Equalize ArrayVideo
Solution60.8%Easy
Array, Bit Manipulation +1
3688. Bitwise OR of Even Numbers in an ArrayVideo
Solution84.9%Easy
Array, Bit Manipulation +1· 2 companies
3750. Minimum Number of Flips to Reverse Binary StringVideo
Solution75.5%Easy
Bit Manipulation, Math +2
Showing 1–50 of 54