Leetcode Problem 2120. Execution of All Suffix Instructions Staying in a Grid

2120. Execution of All Suffix Instructions Staying in a Grid

Leetcode Solutions

Brute Force Approach

  1. Initialize an empty list result to store the number of executable instructions for each starting position.
  2. Loop through each character in the string s using index i as the starting position.
  3. Set the robot's current position to startPos.
  4. Initialize a counter count to 0.
  5. Loop through the substring of s starting from index i to the end.
  6. For each instruction, update the robot's position and increment count if the move is valid (within the grid).
  7. If the move is invalid (outside the grid), break the loop.
  8. Add count to the result list.
  9. Return the result list.
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Boundary Pre-calculation Approach

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