Split Array Largest Sum | Binary Search on Answer | Leetcode 410

Split Array Largest Sum is a classic binary search on answer problem.

You're given an array of integers and a number k. The task is to split the array into k or fewer contiguous subarrays such that the largest subarray sum is minimized.

💡 Key Idea:

Apply binary search between the largest number and the total sum, and check if we can split within k groups without any group exceeding the mid sum.

📌 Time Complexity: O(n * log(sum))

✅ Space: O(1)

Learn the optimal greedy + binary search strategy to ace similar questions!

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