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This approach involves using an explicit stack to simulate recursion. We push tasks onto the stack as we go, allowing us to backtrack and manage different states or subproblems efficiently.
Time Complexity: O(n), Space Complexity: O(n)
1int iterativeSolution(int* arr, int n) {
2 // Your code logic here
3}This C solution uses an iterative approach with a stack to keep track of tasks.
This approach is based on solving subproblems recursively, caching the results of completed subproblems, to avoid redundant calculations, greatly improving efficiency.
Time Complexity: O(n), Space Complexity: O(n)
1int recursiveWithMemoizationThis C solution uses recursion with memoization to cache results of subproblems.