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Python solutions to the leetcode interview problems

Check the notes for the explaination -Notes

• Backtracking

  • Word Search
  • Letter Case Permutation
  • Subsets
  • Subsets-II
  • Permutations
  • Permutations II
  • Combinations
  • Combination Sum
  • Combination Sum II
  • Combination Sum III
  • Generate Parentheses
  • Palindrome Partitioning
  • Letter Combinations of a Phone Number
  • Generalized Abbreviation
  • N-Queens

• Dynamic Programming

  • Climbing Stairs
  • Maximum Subarray
  • Range Sum Query - Immutable
  • Counting Bits

• Arrays

  • Two Sum
  • Contains Duplicate
  • Product Of Array Except Self

• Two Pointers

  • Squares of a Sorted Array
  • Backspace String Compare
  • Find the Duplicate Number
  • Subarray Product Less Than K

• Graphs

  • Number of Islands
  • Clone Graph
  • Course Schedule