Coding Problems

Given 2D board and word, find if word exists in the grid (DFS)

Implement binary search to find target in sorted array

Merge k sorted linked lists into one sorted linked list

Implement the QuickSort algorithm to sort an array in ascending order

Reserve seats in a row if they are contiguous and available.

Sum all transactions for each day from a list.

Flag transactions with the same amount and recipient within 10 minutes.

Merge overlapping time slots to show continuous availability.

Filter patients with BMI ≥ 30 (Obese). BMI = weight(kg) / height(m)^2.

Calculate the average age of patients from a list.

Flag messages containing spam keywords (e.g., "buy", "promo", "free").

Sort posts by total engagement (likes + comments) in descending order.

Apply discounts based on cart total: 10% if total > $100, else 5%.

Given available movies, book a movie and return remaining slots.

Given a list of purchased products, return the top K most frequently bought items.

Given a dictionary of movies by genre, return movies of a selected genre.

Given booked seats, check if a seat is available.

Flag transactions above a threshold as suspicious.

Given a list of transactions, compute the total balance.

Given booked slots, find available time slots.