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Introduction

Welcome to the DSA handbook.

Task​

Now​

  1. 3 Sum, 4 Sum Duplicacy removal

Dec 30, 2025​

Primary focus on all 13 problem of 1D Array

  1. Koko Eating Banans
  2. Search in Roated Sorted II
  3. Find Nth Root
  4. Floor/Ceil
  5. Find X
  6. Signle Element
  7. Upper Bound
  8. First and Last Occurences
  9. Count Occurences
  10. Search in Rotated Sorted
  11. Minimum in Rotated Sorted Array
  12. Count rotation
  13. Find Peak Element
  14. Search Insert Position
  15. Find Square Root
  16. Maximum one's
  17. Lower Bound
  18. Search in 2D matrix

Dec 31, 2025​

Primary focus on all 9 problem of LL, DLL and Medium of DLL

  • Note Down current & current->next
  • Iterative & Recursive Reverse

Feb 1, 2025​

Primary focus on all 14 problem of array easy