Searching Coding Problems for Interviews
Last Updated :
18 Sep, 2025
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Searching in Data Structures and Algorithms (DSA) is a fundamental operation that involves finding a specific element within a collection of data. The following searching problems are carefully selected based on interview experiences.
Easy Problems
- Missing Number
- Second Largest
- Common in three Sorted
- Transition point in a binary
- Floor in a Sorted
- Pair with difference
- Square Root
- Rotation Count
- Matrix Sorted Search
- Bitonic Peak Search
Medium Problems
- Search in Rotated Sorted
- Majority Element
- K’th Smallest/Largest in Unsorted
- Count Frequency in Sorted Array
- Peak Element
- Smallest Missing Positive
- All triplets with zero sum
- First & Last Positions in Sorted Array
- Matrix Sorted Search
- Two Repeating Elements
- Single in Sorted Array
- Two elements with sum closest to zero
- Count ≤ Elements from 2nd Array
- Smallest Number with n Factorial Zeros
- k-th smallest in given n ranges
- Minimum Repeats for Substring
- Remove Coins for ≤ K Difference
- Capacity To Ship Packages Within D Days
- Count Pairs with Sum > 0
- Minimum Repeats for Substring
- Farthest Smaller Element Right
- Ternary Search
- Distribute N candies among K people
- Smallest Difference Triplet from Three arrays
- Minimize Tower Equalization Cost
- Maximum Modulo Pair
- K-th Missing Positive
Hard Problems
- Median of two Sorted Arrays
- Book Allocation Problem
- Painter's Partition
- Median in row wise sorted matrix
- Aggressive Cows
- Split Array to Minimize Max Sum
- Kth Smallest Number in Multiplication Table
- Count Numbers with Digit Sum Difference
- Minimum time to fulfil all orders
- Maximize Min Flower Height
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