Problem3496--【Div3】abc429c - Odd One Subsequence

3496: 【Div3】abc429c - Odd One Subsequence

[Creator : ]
Time Limit : 1.000 sec  Memory Limit : 128 MB

SubmitSolved: 0Submit Num: 0Statistics

Description



Sample Input Copy 

5
3 2 5 2 2

Sample Output Copy 

6

Source/Category

Div2 atcoder 数学 组合数学 
Submit