Nettet8. mai 2024 · Here, is the detailed solution MINIMUM ADDITIONS problem of HACKEREARTH DATA STRUCTURES AND ALGORITHMS CODING CONTEST MAY 2024 and if you have … Mo’s algorithm is a generic idea. It applies to the following class of problems: For the sake of brevity we will denote Func([L, R]) as the value of Func on subarray Arr[L..R]. If this sounds too abstract, let’s look at specific example: Here we have Func([L, R]) = Arr[L] + Arr[L + 1] + ... + Arr[R]. This does not sound so scary, … Se mer We have Q queries to answer. Suppose we answer them in order they are asked in the following manner: This can take Ω(N * Q) time. If N and Q are of order 105, then this would lead to time … Se mer Let’s view Arr as a union of disjoint segments of size BLOCK_SIZE, which we will call “blocks”. Take a look at the picture for better understanding: Let K be the index of last block. Then there are K + 1 blocks, because we … Se mer Here is the C++ implementation for the above problem: Same solution without global variables (the way I like to implement it): Se mer Let’s look at an example problem (idea taken from here): Constraints are N ≤ 105, Q ≤ 105. To apply Mo’s algorithm, you must ensure of three properties: 1. Arr is not modified by queries; 2. Queries are known beforehand; 3. If … Se mer

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