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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)
1function iterativeSolution(arr) {
2    // Your code logic here
3}This JavaScript solution uses an iterative approach with a stack to keep track of tasks.
This C solution uses recursion with memoization to cache results of subproblems.