Time Range Event Counter
Examples
Example 1:
Input: ["EventCounter","receive","receive","receive","receive","receive","count","count","count","count","count"]
[[],["login",1],["login",3],["signup",4],["login",7],["login",10],["login",2,8],["login",1,10],["signup",1,5],["signup",5,10],["logout",1,100]]
Output: [null,null,null,null,null,null,2,4,1,0,0]
Explanation: