stl(set+stack) LA 3634 The SetStack Computer

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stl(set+stack) LA 3634 The SetStack Computer

题目传送门题意:给一些对集合的操作,询问每一次操作后栈顶的集合元素个数分析:首先{}是空的,每一次add时候,{} -> { {} }变成了有一个元素的集合,利用set和stack,map容器能很方便解决这道题. if (!mp[s1]) mp[s1] = ++cnt; s2.insert (mp[s1]); } sta.push (s2); return s2.size (); } int intersect() { pop (); tmp.clear (); for (it=s1.beg…

UVA.12096 The SetStack Computer ( 好题栈 STL混合应用)

UVA.12096 The SetStack Computer ( 好题栈 STL混合应用) 题意分析绝对的好题. 先说做完此题的收获: 1.对数据结构又有了宏观的上的认识; 2.熟悉了常用STL(set,map,vector)的常用用法; 3.学习了一种问题转化的方式. 我想如果告诉我这题用STL解决,并且还能独立完成的话,那么STL应该算是过关了. 有下列操作集: 1.PUSH:向栈顶PUSH一个空集合的元素: 2.DUP: 弹出栈顶元素: 3.UNION: 弹出2个栈顶元素,并且去并集…

12096 - The SetStack Computer UVA

Background from Wikipedia: \Set theory is a branch of mathematics created principally by the German mathematician Georg Cantor at the end of the 19th century. Initially controversial, set theory has come to play the role of a foundational theory in m…

UVa12096.The SetStack Computer

题目链接:http://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&problem=3248 13916058 12096 The SetStack Computer Accepted C++ 0.302 2014-07-21 03:43:15 The SetStack Computer Background from Wikipedia: \Set theory i…

集合栈计算机(The SetStack Computer, ACM/ICPC NWERC 2006,Uva12096)

集合栈计算机(The SetStack Computer, ACM/ICPC NWERC 2006,Uva12096) 题目描述有一个专门为了集合运算而设计的"集合栈"计算机.该机器有一个初始为空的栈,并且支持以下操作: PUSH:空集"{}"入栈 DUP:把当前栈顶元素复制一份后再入栈 UNION:出栈两个集合,然后把两者的并集入栈 INTERSECT:出栈两个集合,然后把二者的交集入栈 ADD:出栈两个集合,然后把先出栈的集合加入到后出栈的集合中,把结果入栈…

UVA12096 - The SetStack Computer(set + map映射)

UVA12096 - The SetStack Computer(set + map映射) 题目链接题目大意:有五个动作: push : 把一个空集合{}放到栈顶. dup : 把栈顶的集合取出来,在入栈两次. add : 出栈两次.把第一个集合作为一个元素放入第二个集合中,再将第二个集合入栈 union: 出栈两次,取这两个集合的并集.将结果入栈. intersect: 出栈两次.取这两个集合的交集,将结果入栈. 每次运行动作后还须要输出眼下栈顶集合的元素个数. 解题思路:这题能够用栈和se…

EOJ 1641/UVa The SetStack Computer

Background from Wikipedia: “Set theory is a branch of mathematics created principally by the German mathematician Georg Cantor at the end of the 19th century. Initially controversial, set theory has come to play the role of a foundational theory in m…