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3489. Zero Array Transformation IV 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 b...