C + + standard library function stacks and queues

When using the stack and queue of a standard library, you should include the first-minute files.
The header file should be included in the stack: #include < stack >
Definition: stack< int > S;

s.empty();         //如果栈为空则返回true, 否则返回false;s.size();          //返回栈中元素的个数s.top();           //返回栈顶元素, 但不删除该元素s.pop(); //弹出栈顶元素, 但不返回其值s.push(); //将元素压入栈顶

Include header files: #include < queue >
Definition: queue< int > q;

q.empty();         //如果队列为空返回true, 否则返回false     q.size();          //返回队列中元素的个数q.front();         //返回队首元素但不删除该元素q.pop(); //弹出队首元素但不返回其值q.push(); //将元素压入队列q.back(); //返回队尾元素的值但不删除该元素

C + + standard library function stacks and queues