You are given two positive integers AA and BB. Find the number of pairs of positive integers (X,Y)(X,Y) such that 1≤X≤A1≤X≤A, 1≤Y≤B1≤Y≤B and X+YX+Y is even. Example Input 1 1 2 3 4 6 8 9 Example Output 1 3 12 36

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
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You are given two positive integers AA and BB. Find the number of pairs of positive integers (X,Y)(X,Y) such that 1≤X≤A1≤X≤A, 1≤Y≤B1≤Y≤B and X+YX+Y is even.

Example Input

1 1

2 3

4 6

8 9

Example Output

1

3

12

36

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