Leetcode Problem 403. Frog Jump
Leetcode Solutions
Top-Down Dynamic Programming Approach
- Create a map
markmapping stone positions to their indices. - Define a recursive function that takes the current index and the size of the previous jump as arguments.
- If the current index is the last stone, return true.
- For each possible next jump size (
prevJump - 1,prevJump,prevJump + 1): a. Calculate the next position of the frog. b. Check if the next position has a stone and if the jump size is positive. c. If so, recursively call the function with the new index and jump size. - Memoize the result for each state to avoid redundant calculations.
- Return the result of the recursive call starting from index 0 and a previous jump of 0.
Bottom-Up Dynamic Programming Approach
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