Dashboard Questions Topics Companies Sheets

Data Structures & Algorithms

Practice 3,374+ coding problems from top companies. Master DSA concepts and ace your interviews.

3,374

Problems

840

Easy

1762

Medium

772

Hard

Difficulty

All3374 Easy840 Medium1762 Hard772

Title	Solve	Difficulty	Companies	Topics
2901. Longest Unequal Adjacent Groups Subsequence II	Solve	Medium	Fourkites	Array Dynamic Programming+1
2902. Count of Sub-Multisets With Bounded Sum	Solve	Hard	-	Array Dynamic Programming+2
2903. Find Indices With Index and Value Difference I	Solve	Easy	PayTM	Array Two Pointers
2904. Shortest and Lexicographically Smallest Beautiful String	Solve	Medium	Amazon+1	Sliding Window String
2905. Find Indices With Index and Value Difference II	Solve	Medium	PayTM	Array Two Pointers
2906. Construct Product Matrix	Solve	Medium	-	Array Matrix+1
2907. Maximum Profitable Triplets With Increasing Prices I	Solve	Medium	IBM	Array Binary Indexed Tree+1
2908. Minimum Sum of Mountain Triplets I	Solve	Easy	ION	Array
2909. Minimum Sum of Mountain Triplets II	Solve	Medium	ION	Array
2910. Minimum Number of Groups to Create a Valid Assignment	Solve	Medium	BNY Melon	Array Greedy+1
2911. Minimum Changes to Make K Semi-palindromes	Solve	Hard	-	Dynamic Programming String+1
2912. Number of Ways to Reach Destination in the Grid	Solve	Hard	Uber	Combinatorics Dynamic Programming+1
2913. Subarrays Distinct Element Sum of Squares I	Solve	Easy	-	Array Hash Table
2914. Minimum Number of Changes to Make Binary String Beautiful	Solve	Medium	-	String
2915. Length of the Longest Subsequence That Sums to Target	Solve	Medium	Intuit	Array Dynamic Programming
2916. Subarrays Distinct Element Sum of Squares II	Solve	Hard	Amazon	Array Binary Indexed Tree+2
2917. Find the K-or of an Array	Solve	Easy	Amazon	Array Bit Manipulation
2918. Minimum Equal Sum of Two Arrays After Replacing Zeros	Solve	Medium	Citadel+1	Array Greedy
2919. Minimum Increment Operations to Make Array Beautiful	Solve	Medium	Google	Array Dynamic Programming
2920. Maximum Points After Collecting Coins From All Nodes	Solve	Hard	DE Shaw	Array Bit Manipulation+3
2921. Maximum Profitable Triplets With Increasing Prices II	Solve	Hard	IBM	Array Binary Indexed Tree+1
2922. Market Analysis III	Solve	Medium	-	Database
2923. Find Champion I	Solve	Easy	Google	Array Matrix
2924. Find Champion II	Solve	Medium	Google	Graph
2925. Maximum Score After Applying Operations on a Tree	Solve	Medium	Google	Depth-First Search Dynamic Programming+1
2926. Maximum Balanced Subsequence Sum	Solve	Hard	Amazon	Array Binary Indexed Tree+3
2927. Distribute Candies Among Children III	Solve	Hard	Amazon+1	Combinatorics Math
2928. Distribute Candies Among Children I	Solve	Easy	Amazon+1	Combinatorics Enumeration+1
2929. Distribute Candies Among Children II	Solve	Medium	Amazon+1	Combinatorics Enumeration+1
2930. Number of Strings Which Can Be Rearranged to Contain Substring	Solve	Medium	Meesho	Combinatorics Dynamic Programming+1
2931. Maximum Spending After Buying Items	Solve	Hard	Zomato	Array Greedy+3
2932. Maximum Strong Pair XOR I	Solve	Easy	Amazon+1	Array Bit Manipulation+3
2933. High-Access Employees	Solve	Medium	Atlassian	Array Hash Table+2
2934. Minimum Operations to Maximize Last Elements in Arrays	Solve	Medium	-	Array Enumeration
2935. Maximum Strong Pair XOR II	Solve	Hard	ZScaler	Array Bit Manipulation+3
2936. Number of Equal Numbers Blocks	Solve	Medium	Google	Array Binary Search+1
2937. Make Three Strings Equal	Solve	Easy	Amazon	String
2938. Separate Black and White Balls	Solve	Medium	1Kosmos	Greedy String+1
2939. Maximum Xor Product	Solve	Medium	-	Bit Manipulation Greedy+1
2940. Find Building Where Alice and Bob Can Meet	Solve	Hard	Infosys	Array Binary Indexed Tree+5
2941. Maximum GCD-Sum of a Subarray	Solve	Hard	-	Array Binary Search+2
2942. Find Words Containing Character	Solve	Easy	Amazon+1	Array String
2943. Maximize Area of Square Hole in Grid	Solve	Medium	Swiggy	Array Sorting
2944. Minimum Number of Coins for Fruits	Solve	Medium	-	Array Dynamic Programming+3
2945. Find Maximum Non-decreasing Array Length	Solve	Hard	Amazon	Array Binary Search+5
2946. Matrix Similarity After Cyclic Shifts	Solve	Easy	Salesforce	Array Math+2
2947. Count Beautiful Substrings I	Solve	Medium	Amazon	Enumeration Hash Table+4
2948. Make Lexicographically Smallest Array by Swapping Elements	Solve	Medium	Atlassian	Array Sorting+1
2949. Count Beautiful Substrings II	Solve	Hard	Amazon	Hash Table Math+3
2950. Number of Divisible Substrings	Solve	Medium	Amdocs	Counting Hash Table+2