题解 | #栈的压入、弹出序列#
栈的压入、弹出序列
http://www.nowcoder.com/practice/d77d11405cc7470d82554cb392585106
class Solution { public: bool IsPopOrder(vector pushV,vector popV) { if(pushV.size() == 0 || popV.size() == 0 || pushV.size() != popV.size()) { return false; } int i = 0;//pushV的 int j = 0;//popV的 stack st; while(i < pushV.size()) { //不bb那么多，先加上再说 st.push(pushV[i]); i++; //这个时候考虑是否是删除 while(!st.empty() && st.top() == popV[j])//删完，全部去掉 { st.pop(); j++; } } return j == popV.size(); } };
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