| { |
| "id": 2916, |
| "name": "check-if-it-is-possible-to-split-array", |
| "difficulty": "Medium", |
| "link": "https://leetcode.com/problems/check-if-it-is-possible-to-split-array/", |
| "date": "2023-07-30", |
| "task_description": "You are given an array `nums` of length `n` and an integer `m`. You need to determine if it is possible to split the array into `n` arrays of size 1 by performing a series of steps. An array is called **good** if: The length of the array is **one**, or The sum of the elements of the array is **greater than or equal** to `m`. In each step, you can select an existing array (which may be the result of previous steps) with a length of **at least two** and split it into **two **arrays, if both resulting arrays are good. Return true if you can split the given array into `n` arrays, otherwise return false. **Example 1:** **Input:** nums = [2, 2, 1], m = 4 **Output:** true **Explanation:** Split `[2, 2, 1]` to `[2, 2]` and `[1]`. The array `[1]` has a length of one, and the array `[2, 2]` has the sum of its elements equal to `4 >= m`, so both are good arrays. Split `[2, 2]` to `[2]` and `[2]`. both arrays have the length of one, so both are good arrays. **Example 2:** **Input:** nums = [2, 1, 3], m = 5 **Output:** false **Explanation:** The first move has to be either of the following: Split `[2, 1, 3]` to `[2, 1]` and `[3]`. The array `[2, 1]` has neither length of one nor sum of elements greater than or equal to `m`. Split `[2, 1, 3]` to `[2]` and `[1, 3]`. The array `[1, 3]` has neither length of one nor sum of elements greater than or equal to `m`. So as both moves are invalid (they do not divide the array into two good arrays), we are unable to split `nums` into `n` arrays of size 1. **Example 3:** **Input:** nums = [2, 3, 3, 2, 3], m = 6 **Output:** true **Explanation:** Split `[2, 3, 3, 2, 3]` to `[2]` and `[3, 3, 2, 3]`. Split `[3, 3, 2, 3]` to `[3, 3, 2]` and `[3]`. Split `[3, 3, 2]` to `[3, 3]` and `[2]`. Split `[3, 3]` to `[3]` and `[3]`. **Constraints:** `1 <= n == nums.length <= 100` `1 <= nums[i] <= 100` `1 <= m <= 200`", |
| "test_case": [ |
| { |
| "label": "Example 1", |
| "input": "nums = [2, 2, 1], m = 4", |
| "output": "true " |
| }, |
| { |
| "label": "Example 2", |
| "input": "nums = [2, 1, 3], m = 5", |
| "output": "false " |
| }, |
| { |
| "label": "Example 3", |
| "input": "nums = [2, 3, 3, 2, 3], m = 6", |
| "output": "true " |
| } |
| ], |
| "constraints": [ |
| "The length of the array is one, or", |
| "The sum of the elements of the array is greater than or equal to m.", |
| "Split [2, 2, 1] to [2, 2] and [1]. The array [1] has a length of one, and the array [2, 2] has the sum of its elements equal to 4 >= m, so both are good arrays.", |
| "Split [2, 2] to [2] and [2]. both arrays have the length of one, so both are good arrays.", |
| "Split [2, 1, 3] to [2, 1] and [3]. The array [2, 1] has neither length of one nor sum of elements greater than or equal to m.", |
| "Split [2, 1, 3] to [2] and [1, 3]. The array [1, 3] has neither length of one nor sum of elements greater than or equal to m.", |
| "Split [2, 3, 3, 2, 3] to [2] and [3, 3, 2, 3].", |
| "Split [3, 3, 2, 3] to [3, 3, 2] and [3].", |
| "Split [3, 3, 2] to [3, 3] and [2].", |
| "Split [3, 3] to [3] and [3].", |
| "1 <= n == nums.length <= 100", |
| "1 <= nums[i] <= 100", |
| "1 <= m <= 200" |
| ], |
| "python_template": "class Solution(object):\n def canSplitArray(self, nums, m):\n \"\"\"\n :type nums: List[int]\n :type m: int\n :rtype: bool\n \"\"\"\n ", |
| "java_template": "class Solution {\n public boolean canSplitArray(List<Integer> nums, int m) {\n \n }\n}", |
| "metadata": { |
| "func_name": "canSplitArray" |
| } |
| } |
