C. Heap Operations time limit per test:1 second memory limit per test:256 megabytes input:standard input output:standard output Petya has recently learned data structure named "Binary heap". The heap he is now operating with allows the following…

题意:给定 n 个按顺序的命令,但是可能有的命令不全,让你补全所有的命令,并且要求让总数最少. 析:没什么好说的,直接用优先队列模拟就行,insert,直接放入就行了,removeMin,就得判断一下队列是不是空的,然后再考虑getMin,这个是不是对应的值,如果队列中首元素比它大,那么就加上一个, 如果相等直接取出,如果小于就不断取队列中最小元素. 代码如下: #include <bits/stdc++.h> using namespace std; char s[15], t[30]; v…

比较简单的模拟,建议使用STL优先队列. 代码如下: #include<iostream> #include<cstdio> #include<cstring> #include<queue> using namespace std; #define N 1000010 ]; int outn[N]; priority_queue<int,vector<int>,greater<int> >que; int main()…

Petya has recently learned data structure named "Binary heap". The heap he is now operating with allows the following operations: put the given number into the heap; get the value of the minimum element in the heap; extract the minimum element f…

C. Heap Operations 题目连接: http://www.codeforces.com/contest/681/problem/C Description Petya has recently learned data structure named "Binary heap". The heap he is now operating with allows the following operations: put the given number into the…

 Heap Operations time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Petya has recently learned data structure named "Binary heap". The heap he is now operating with allows the following o…

用单调队列(从小到大),模拟一下就好了,主要是getMin比较麻烦,算了,都是模拟....也没什么好说的.. #include<cstdio> #include<map> #include<queue> #include<iostream> #include<stdlib.h> #include<string.h> #include<algorithm> using namespace std; priority_queu…

题目链接:http://codeforces.com/contest/948/problem/C 题目大意:给定长度n(n<=1e5),第一行v[i]表示表示第i堆雪的体积,第二行t[i]表示第1~i天的雪将要消融的体积,一堆雪如果消融到体积为0则消失,求每天消融的雪的体积. 解题思路:用优先队列,第i天就将v[i]+sum[i-1]放入优先队列中,然后初始消融量ans=t[i]*q.size(),假设每堆雪都够消融,然后根据优先队列找到q.top()<=sum[i]即不够消融的,减掉差值.…

<题目链接> 题目大意: 就是一道纯模拟题,具体模拟过程见代码. 解题分析:要掌握不同优先级的优先队列的设置.下面是对优先队列的使用操作详解: priority_queue<int>q 默认为大顶堆. priority_queue<int, vector<int>, less<int>> 大顶堆:表示其他都比堆顶小 priority_queue<int, vector<int>, greater<int>> 小…

题目链接 /* Name: Copyright: Author: Date: 2018/5/2 16:09:54 Description:优先队列 */ #include <iostream> #include <cstdio> #include <vector> #include <cstring> #include <queue> using namespace std; ; int price[MAXN]; struct tshirt{ i…