A stack is a data structure in which all insertions and deletions of entries are made at one end, called the "top" of the stack. The last entry which is inserted is the first one that will be removed. In another word, the operations perform in a…

多校7 HDU5818 Joint Stacks 题意:n次操作.模拟栈的操作,合并的以后,每个栈里的元素以入栈顺序排列 思路:开三个栈,并且用到了merge函数 O(n)的复杂度 #include <bits/stdc++.h> using namespace std; #define LL long long const int inf = 0x3f3f3f3f; ; ; #define clc(a,b) memset(a,b,sizeof(a)) ; void fre() {freope…

Joint Stacks Time Limit: 8000/4000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 1819    Accepted Submission(s): 819 Problem Description A stack is a data structure in which all insertions and deletions of entries…

题意:给2组数据a和b数组,每次有2种操作:(+,l,r,x)把a数组第l个到第r个元素全置为x,(?,l,r)查询[l,r]之间哪些位置满足a[i]>=b[i](i>=l && i<=r)并把这些位置的数量统计 一直想很久,没想到什么有效的方案,直到看到题解才明白过来,原来线段树套平衡树还有这种情况:里面其实不是平衡树,只是有序表. 然后这题就转换为区间查找数对应排名 由于此题不用对2个数组都修改,其中1个b树可作为固定的线段树套有序表以节省时间,另外1个表a树则单纯使…

Sample Input 4 8 4 1 3 2 2 1 0 3 5 3 6 4 2 1 7 6 8 3 3 2 0 5 0 3 6 4 5 2 7 7 6 7 6 8 2 2 3 3 3 0 0 2 7 4 3 6 3 2 2 5 8 5 6 5 3 3 1 2 4 6 7 7 6 5 4 3 5   Sample Output 7 1 7 6 5 2 4 3 8 8 4 6 3 1 2 5 8 7 7 3 6 7 1 5 2 8 4 0 1 2 3 4 5 6 7 8 找出能约出最多人的顺序…

Being an ACMer requires knowledge in many fields, because problems in this contest may use physics, biology, and even musicology as background. And now in this problem, you are being a city architect! A city with N towns (numbered 1 through N) is und…

Mr. Chopsticks is interested in random phenomena, and he conducts an experiment to study randomness. In the experiment, he throws n balls into m boxes in such a manner that each ball has equal probability of going to each boxes. After the experiment,…

Joint Stacks 题目链接: http://acm.hdu.edu.cn/showproblem.php?pid=5818 Description A stack is a data structure in which all insertions and deletions of entries are made at one end, called the "top" of the stack. The last entry which is inserted is th…

HDU 5818 Joint Stacks(联合栈) Time Limit: 8000/4000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others) Description 题目描述 A stack is a data structure in which all insertions and deletions of entries are made at one end, called the "top" of…

Joint Stacks Time Limit: 8000/4000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 828    Accepted Submission(s): 403 Problem Description A stack is a data structure in which all insertions and deletions of entries a…