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
2851. String Transformation	Solve	Hard	Atlassian+3	Dynamic Programming Math+2
2852. Sum of Remoteness of All Cells	Solve	Medium	Media.Net	Array Breadth-First Search+4
2853. Highest Salaries Difference	Solve	Easy	-	Database
2854. Rolling Average Steps	Solve	Medium	-	Database
2855. Minimum Right Shifts to Sort the Array	Solve	Easy	Accenture+1	Array
2856. Minimum Array Length After Pair Removals	Solve	Medium	Snowflake	Array Binary Search+4
2857. Count Pairs of Points With Distance k	Solve	Medium	Google	Array Bit Manipulation+1
2858. Minimum Edge Reversals So Every Node Is Reachable	Solve	Hard	Meesho	Breadth-First Search Depth-First Search+2
2859. Sum of Values at Indices With K Set Bits	Solve	Easy	Accenture+1	Array Bit Manipulation
2860. Happy Students	Solve	Medium	-	Array Enumeration+1
2861. Maximum Number of Alloys	Solve	Medium	Amazon+1	Array Binary Search
2862. Maximum Element-Sum of a Complete Subset of Indices	Solve	Hard	Purplle	Array Math+1
2863. Maximum Length of Semi-Decreasing Subarrays	Solve	Medium	Google+1	Array Monotonic Stack+2
2864. Maximum Odd Binary Number	Solve	Easy	-	Greedy Math+1
2865. Beautiful Towers I	Solve	Medium	Salesforce	Array Monotonic Stack+1
2866. Beautiful Towers II	Solve	Medium	Salesforce	Array Monotonic Stack+1
2867. Count Valid Paths in a Tree	Solve	Hard	Sprinklr	Depth-First Search Dynamic Programming+3
2868. The Wording Game	Solve	Hard	-	Array Game Theory+4
2869. Minimum Operations to Collect Elements	Solve	Easy	Deutsche Bank	Array Bit Manipulation+1
2870. Minimum Number of Operations to Make Array Empty	Solve	Medium	Amazon+1	Array Counting+2
2871. Split Array Into Maximum Number of Subarrays	Solve	Medium	-	Array Bit Manipulation+1
2872. Maximum Number of K-Divisible Components	Solve	Hard	Google	Depth-First Search Tree
2873. Maximum Value of an Ordered Triplet I	Solve	Easy	Media.Net	Array
2874. Maximum Value of an Ordered Triplet II	Solve	Medium	Media.Net	Array
2875. Minimum Size Subarray in Infinite Array	Solve	Medium	DE Shaw	Array Hash Table+2
2876. Count Visited Nodes in a Directed Graph	Solve	Hard	BNY Melon	Dynamic Programming Graph+1
2877. Create a DataFrame from List	Solve	Easy	-
2878. Get the Size of a DataFrame	Solve	Easy	-
2879. Display the First Three Rows	Solve	Easy	-
2880. Select Data	Solve	Easy	-
2881. Create a New Column	Solve	Easy	-
2882. Drop Duplicate Rows	Solve	Easy	-
2883. Drop Missing Data	Solve	Easy	-
2884. Modify Columns	Solve	Easy	-
2885. Rename Columns	Solve	Easy	-
2886. Change Data Type	Solve	Easy	-
2887. Fill Missing Data	Solve	Easy	-
2888. Reshape Data: Concatenate	Solve	Easy	-
2889. Reshape Data: Pivot	Solve	Easy	-
2890. Reshape Data: Melt	Solve	Easy	-
2891. Method Chaining	Solve	Easy	-
2892. Minimizing Array After Replacing Pairs With Their Product	Solve	Medium	Adobe	Array Dynamic Programming+1
2893. Calculate Orders Within Each Interval	Solve	Medium	-	Database
2894. Divisible and Non-divisible Sums Difference	Solve	Easy	-	Math
2895. Minimum Processing Time	Solve	Medium	Akuna Capital+1	Array Greedy+1
2896. Apply Operations to Make Two Strings Equal	Solve	Medium	Zeta	Dynamic Programming String
2897. Apply Operations on Array to Maximize Sum of Squares	Solve	Hard	Sprinklr	Array Bit Manipulation+2
2898. Maximum Linear Stock Score	Solve	Medium	Amazon	Array Hash Table
2899. Last Visited Integers	Solve	Easy	-	Array Simulation
2900. Longest Unequal Adjacent Groups Subsequence I	Solve	Easy	Fourkites	Array Dynamic Programming+2