Example: Using python You are given a permutation A of the first N positive integers. You are also given Q queries to perform one-by-one, the i-th is defined by a pair X¡ Y¡ and has the meaning that you swap the X-th number in the permutation with the Y1-th one. After performing each query you should output the number of inversions in the obtained permutation, modulo 2. The inversion is such a pair (1, j) that i < j and Aj > Aj. Input: 51 123 4 5 23 Output: 1

Example: Using python You are given a permutation A of the first N positive integers. You are also given Q queries to perform one-by-one, the i-th is defined by a pair X¡ Y¡ and has the meaning that you swap the X-th number in the permutation with the Y1-th one. After performing each query you should output the number of inversions in the obtained permutation, modulo 2. The inversion is such a pair (1, j) that i < j and Aj > Aj. Input: 51 123 4 5 23 Output: 1

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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