Directi Topics for Interview Preparation

Last Updated : 23 Jul, 2025

Table of Content

Easy Level

  1. Count number of strings (made of R, G and B) using given combination
  2. Find Maximum dot product of two arrays with insertion of 0's
  3. Find the maximum path sum between two leaves of a binary tree
  4. K-Nearest Neighbours
  5. Largest sum Zigzag sequence in a matrix
  6. N-th root of a number
  7. Print all Jumping Numbers smaller than or equal to a given value
  8. Search in a row wise and column wise sorted matrix
  9. Sliding Window Maximum (Maximum of all subarrays of size k)
  10. Stock Buy Sell to Maximize Profit

Medium Level


  1. Boggle | Set 2 (Using Trie)
  2. Check if an array can be divided into pairs whose sum is divisible by k
  3. Find Excel column name from a given column number
  4. Find the point where maximum intervals overlap
  5. Maximum size rectangle binary sub-matrix with all 1s
  6. Probability of Knight to remain in the chessboard


Hard Level


  1. Backtracking | Set 7 (Sudoku)
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