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Demystifying Algorithms: Brute Force

  • Brute force is a direct problem-solving strategy where all possible solutions are explored until the correct one is found.
  • It doesn’t rely on advanced heuristics and optimizations and so helps in understanding and solving problems.
  • Here are some common brute force problems with Python code, detailed time and space complexity analysis, and optimized patterns:
  • 1. String Matching - Time Complexity: O(n * m) and Space Complexity: O(1)
  • 2. Finding Duplicates - Time Complexity: O(n²) and Space Complexity: O(1)
  • 3. Maximum Subarray Sum - Time Complexity: O(n³) and Space Complexity: O(1)
  • 4. Palindrome Check - Time Complexity: O(n³) and Space Complexity: O(1)
  • 5. Two Sum Problem - Time Complexity: O(n²) and Space Complexity: O(1)
  • 6. Fibonacci Sequence - Time Complexity: O(2ⁿ) and Space Complexity: O(n)
  • By identifying patterns like Dynamic Programming, Hashing, and Matrix Exponentiation, performance and scalability can be improved.

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