包含min函数的栈

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。

class Solution {

public:

    stack<int>   dataStack,minStack;

    voidpush(int value) {

          dataStack.push(value);

          if(minStack.empty())

          {

              minStack.push(value);

          }

          else

          {

              int min=minStack.top();

              value<=min?   minStack.push(value) : minStack.push(min);

          }

    }

    voidpop() {

          dataStack.pop();

          minStack.pop();

    }

    inttop() {

        returndataStack.top();

    }

    intmin() {

        returnminStack.top();

    }

};