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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
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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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; Yj and has the meaning that you swap the X-th number in the permutation with the Y;-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 (i, j) that i < j and Aj > Aj. Input: 51 123 4 5 23 Output: 1
Transcribed Image Text: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; Yj and has the meaning that you swap the X-th number in the permutation with the Y;-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 (i, j) that i < j and Aj > Aj. Input: 51 123 4 5 23 Output: 1
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