I was given a question with integer array A of size N, And asked to find answer for Q queries. Each query consists of (L, R, Min, Max). One need to find the minimum sum in the given range(L, R) with atleast 'Min' element and atmost 'Max' elements should be in the minimum sum. Constraints : 1 <= N <= 1e5, 1 <= Q <= 1e5, 1 <= Testcases <= 1e5. I tried brute force approach and got TLE. I searched the internet for the optimal approach and couldn't find the answer, so could anyone explain how to approach this problem?