Problem2130--Positive odd number

2130: Positive odd number

Time Limit: 1 Sec  Memory Limit: 128 MB
Submit: 44  Solved: 20
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Description

Output the number of positive odd numbers between n and m,including n and m.

Input

Given two integer n、m

Output

The number of positive odd numbers

Sample Input Copy 

-5 5

Sample Output Copy 

3

Source/Category

175 
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