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Create 933.py

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	`1`	`+class RecentCounter:`
	`2`	`+`
	`3`	`+ def __init__(self):`
	`4`	`+ self.requests = deque()`
	`5`	`+`
	`6`	`+ def ping(self, t: int) -> int:`
	`7`	`+ start = t - 3000`
	`8`	`+ self.requests.append(t)`
	`9`	`+ while self.requests and self.requests[0]<start:`
	`10`	`+ self.requests.popleft()`
	`11`	`+ return len(self.requests)`
	`12`	`+`
	`13`	`+`
	`14`	`+# Your RecentCounter object will be instantiated and called as such:`
	`15`	`+# obj = RecentCounter()`
	`16`	`+# param_1 = obj.ping(t)`

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