九度-1522-包含min函数的栈[解题代码] | Acm之家



九度-1522-包含min函数的栈[解题代码] | Acm之家

定义栈的数据结构,请在该类型中实现一个能够得到栈最小元素的min函数。

输入:

输入可能包含多个测试样例,输入以EOF结束。
对于每个测试案例,输入的第一行为一个整数n(1<=n<=1000000), n代表将要输入的操作的步骤数。
接下来有n行,每行开始有一个字母Ci。
Ci='s'时,接下有一个数字k,代表将k压入栈。
Ci='o'时,弹出栈顶元素。


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