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beyondyyh
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Leetcode
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master
Breadcrumbs
Leetcode
/
algorithms
/
myqueue
/
933.RecentCounter.go
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master
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Leetcode
/
algorithms
/
myqueue
/
933.RecentCounter.go
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package
myqueue
import
(
"Leetcode/algorithms/kit"
)
// 题目:最近的请求次数 https://leetcode-cn.com/problems/number-of-recent-calls/
// 题解:此题主要的理解题目吧,理解了就很简单
// 只会考虑最近3000毫秒到现在的 ping 数,因此可以使用队列存储这些 ping 的记录。
// 当收到一个时间 t 的 ping 时,我们将它加入队列,并且将所有在时间 t - 3000 之前的 ping 移出队列,
// 同时返回队列的长度即可
// RecentCounter structure declare
type
RecentCounter
struct
{
queue
*
kit.
Queue
}
// NewRecentCounter
func
NewRecentCounter
()
*
RecentCounter
{
return
&
RecentCounter
{
queue
:
kit
.
NewQueue
(),
}
}
// Ping returns ping times within the last 3000
func
(
rc
*
RecentCounter
)
Ping
(
t
int
)
int
{
rc
.
queue
.
Push
(
t
)
// 把3000毫秒以外ping的 t 移除队列
for
rc
.
queue
.
Peek
()
<
t
-
3000
{
rc
.
queue
.
Pop
()
}
return
rc
.
queue
.
Len
()
}
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