2016弱校联盟十一专场10.3,BNU52308,大模拟

大模拟
时限60s
你没有看错
是s不是ms

https://www.bnuoj.com/v3/problem_show.php?pid=52308

开两个set
一个是前面20%
一个是后面80%
然后就在两个set的边界处操作
= =
操作,好烦啊啊啊啊啊啊啊啊 啊啊啊

还有种写法是开两个map类似

无论哪一种,代码量都大的可怕= =
HH用map写了150行
cdm用map写了200行(听说4个map)

从下午四点开始写
一开始用map写,写了100+行,样例调了半天,秒WA
调到10点,气哭
后来听zm说可以用两个set,似乎好写一点
然后再写,再WA,再换写法,再发现之前少了一句。。。
终于,发现评测机跑了10s以上基本就是过了
不是因为网速卡,因为,时限有60s= =!

以后写模拟题还是要细心啊,诶,好累

#include <set>
#include <map>
#include <cstdio>
#include <iostream>
#include <algorithm>
using namespace std;
const int N = 100007;
struct node{
    string name;
    int val,time;
    void read(int x){time = x;cin>>name>>val;}
    bool operator < (const node &a)const{
        return val!=a.val?val>a.val:time>a.time;
    }
}arr[N];
int n;
map<string,int>val;
map<string,int>tim;
set <node> work;
set <node> rest;
set<node>::iterator it;
void newGuy(string st,int time){
    n++;
    int x;scanf("%d",&x);
    node tmp,newguy = node{st,x,time};
    val[st] = x; tim[st] = time ;
    it=rest.begin(); tmp = (*it);
    if ((work.size()+1)*5<=n){
        if (newguy<tmp){
            work.insert(newguy);
            cout<<newguy.name<<" is working hard now."<<endl;
        }else {
            rest.insert(newguy);
            cout<<newguy.name<<" is not working now."<<endl;
            rest.erase(tmp);
            work.insert(tmp);
            cout<<tmp.name<<" is working hard now."<<endl;
        }
    }else {
        if (work.empty()){
            rest.insert(newguy);
            cout<<newguy.name<<" is not working now."<<endl;
        }else {
            it = work.end(); it--;
            tmp = (*it);
            if (newguy<tmp){
                work.insert(newguy);
                work.erase(tmp);
                rest.insert(tmp);
                cout<<newguy.name<<" is working hard now."<<endl;
                cout<<tmp.name<<" is not working now."<<endl;
            }else {
                rest.insert(newguy);
                cout<<newguy.name<<" is not working now."<<endl;
            }
        }
    }
}
void leave(string st){
    n--;
    node tmp,leaveguy=node{st,val[st],tim[st]};
    if (work.find(leaveguy)!=work.end()){
        work.erase(leaveguy);
        if ((work.size()+1)*5<=n){
            it = rest.begin();
            tmp = (*it);
            rest.erase(tmp);
            work.insert(tmp);
            cout<<tmp.name<<" is working hard now."<<endl;
        }
    }else {
        rest.erase(leaveguy);
        if ((work.size()+1)*5<=n){
            it = rest.begin();
            tmp = (*it);
            rest.erase(tmp);
            work.insert(tmp);
            cout<<tmp.name<<" is working hard now."<<endl;
        }else if (work.size()*5>n&&!work.empty()){
            it = work.end();it--;
            tmp = (*it);
            work.erase(tmp);
            rest.insert(tmp);
            cout<<tmp.name<<" is not working now."<<endl;
        }
    }
}
int main(){
    for (int m;cin>>n;){
        work.clear() ;
        rest.clear() ;
        for (int i=1;i<=n;i++) arr[i].read(i-n);
        sort( arr+1, arr+n+1) ;
        for (int i=1;i<=n;i++){
            node tmp = arr[i];
            val[tmp.name] = tmp.val ;
            tim[tmp.name] = tmp.time;
            if (i<=(int)(n/5.0))work.insert(arr[i]);
            else rest.insert(arr[i]);
        }
        char ch;string st;
        scanf("%d",&m);
        for (int i=1;i<=m;i++){
            cin>>ch>>st;
            if (ch=='+')newGuy(st,i);
            else leave(st);
        }
    }
    return 0;
}
原文地址:https://www.cnblogs.com/cww97/p/12349377.html