Step 5. Advanced Level

This step is for those who want to move on to more challenging array problems. Here you will face tasks that require non-standard thinking, combining several techniques, and algorithm optimization.
What you will master:
  • Checking existence conditions for elements
  • Analyzing array structure (for example, mountain arrays)
  • Comparing and sorting to find positions and maximum values
  • Finding pairs of elements by given conditions
  • Finding minimal subarrays with required properties