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410\. Split Array Largest Sum

Hard

Given an array `nums` which consists of non-negative integers and an integer `m`, you can split the array into `m` non-empty continuous subarrays.

Write an algorithm to minimize the largest sum among these `m` subarrays.

**Example 1:**

**Input:** nums = [7,2,5,10,8], m = 2

**Output:** 18

**Explanation:**

    There are four ways to split nums into two subarrays.
    The best way is to split it into [7,2,5] and [10,8],
    where the largest sum among the two subarrays is only 18. 

**Example 2:**

**Input:** nums = [1,2,3,4,5], m = 2

**Output:** 9 

**Example 3:**

**Input:** nums = [1,4,4], m = 3

**Output:** 4 

**Constraints:**

*   `1 <= nums.length <= 1000`
*   0 <= nums[i] <= 106
*   `1 <= m <= min(50, nums.length)`




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