FPEvalDataset/LeetCodeProblem
0302
1{2 "id": 3795,3 "name": "zero_array_transformation_iv",4 "difficulty": "Medium",5 "link": "https://leetcode.com/problems/zero-array-transformation-iv/",6 "date": "2025-03-09 00:00:00",7 "task_description": "You are given an integer array `nums` of length `n` and a 2D array `queries`, where `queries[i] = [li, ri, vali]`. Each `queries[i]` represents the following action on `nums`: Select a subset of indices in the range `[li, ri]` from `nums`. Decrement the value at each selected index by **exactly** `vali`. A **Zero Array** is an array with all its elements equal to 0. Return the **minimum** possible **non-negative** value of `k`, such that after processing the first `k` queries in **sequence**, `nums` becomes a **Zero Array**. If no such `k` exists, return -1. **Example 1:** **Input:** nums = [2,0,2], queries = [[0,2,1],[0,2,1],[1,1,3]] **Output:** 2 **Explanation:** **For query 0 (l = 0, r = 2, val = 1):** Decrement the values at indices `[0, 2]` by 1. The array will become `[1, 0, 1]`. **For query 1 (l = 0, r = 2, val = 1):** Decrement the values at indices `[0, 2]` by 1. The array will become `[0, 0, 0]`, which is a Zero Array. Therefore, the minimum value of `k` is 2. **Example 2:** **Input:** nums = [4,3,2,1], queries = [[1,3,2],[0,2,1]] **Output:** -1 **Explanation:** It is impossible to make nums a Zero Array even after all the queries. **Example 3:** **Input:** nums = [1,2,3,2,1], queries = [[0,1,1],[1,2,1],[2,3,2],[3,4,1],[4,4,1]] **Output:** 4 **Explanation:** **For query 0 (l = 0, r = 1, val = 1):** Decrement the values at indices `[0, 1]` by `1`. The array will become `[0, 1, 3, 2, 1]`. **For query 1 (l = 1, r = 2, val = 1):** Decrement the values at indices `[1, 2]` by 1. The array will become `[0, 0, 2, 2, 1]`. **For query 2 (l = 2, r = 3, val = 2):** Decrement the values at indices `[2, 3]` by 2. The array will become `[0, 0, 0, 0, 1]`. **For query 3 (l = 3, r = 4, val = 1):** Decrement the value at index 4 by 1. The array will become `[0, 0, 0, 0, 0]`. Therefore, the minimum value of `k` is 4. **Example 4:** **Input:** nums = [1,2,3,2,6], queries = [[0,1,1],[0,2,1],[1,4,2],[4,4,4],[3,4,1],[4,4,5]] **Output:** 4 **Constraints:** `1 <= nums.length <= 10` `0 <= nums[i] <= 1000` `1 <= queries.length <= 1000` `queries[i] = [li, ri, vali]` `0 <= li <= ri < nums.length` `1 <= vali <= 10`",8 "public_test_cases": [9 {10 "label": "Example 1",11 "input": "nums = [2,0,2], queries = [[0,2,1],[0,2,1],[1,1,3]]",12 "output": "2 "13 },14 {15 "label": "Example 2",16 "input": "nums = [4,3,2,1], queries = [[1,3,2],[0,2,1]]",17 "output": "-1 "18 },19 {20 "label": "Example 3",21 "input": "nums = [1,2,3,2,1], queries = [[0,1,1],[1,2,1],[2,3,2],[3,4,1],[4,4,1]]",22 "output": "4 "23 },24 {25 "label": "Example 4",26 "input": "nums = [1,2,3,2,6], queries = [[0,1,1],[0,2,1],[1,4,2],[4,4,4],[3,4,1],[4,4,5]]",27 "output": ""28 }29 ],30 "private_test_cases": [31 {32 "input": [33 [34 904,35 59136 ],37 [38 [39 0,40 1,41 142 ],43 [44 0,45 0,46 247 ],48 [49 0,50 0,51 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