The condition_variable
class is a synchronization primitive that can be used to block a thread, or multiple threads at the same time, until another thread both modifies a shared variable (the condition), and notifies the condition_variable
. atomic
template defines an atomic type. If one thread writes to an atomic object while another thread reads from it, the behavior is well-defined (see memory model for details on data races).
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```c++
#include
#include
#include
using namespace std;
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Problem: Given an array of numbers, verify whether it is the correct preorder traversal sequence of a binary search tree. You may assume each number in the sequence is unique.
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Used mutex
and condition_variable
. While using them, I utilized unique_lock
class that provides a flexible way to lock/unlock mutexes and control condition variables.
```c++
#include
#include
#include
#include
#include
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Using Semaphore
When the buffer size is one, two semaphores will solve the problem.
```python
import threading
import random
import time
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