Problem Description

The great Mr.Smith has invented a hyperspace particle generator. The device is very powerful. The device can generate a hyperspace. In the hyperspace, particle may appear and disappear randomly. At the same time a great amount of energy was generated.
However, the device is in test phase, often in a unstable state. Mr.Smith worried that it may cause an explosion while testing it. The energy of the device is related to the maximum manhattan distance among particle.
Particles may appear and disappear any time. Mr.Smith wants to know the maxmium manhattan distance among particles when particle appears or disappears.

 

Input

The input contains several test cases, terminated by EOF.
In each case: In the first line, there are two integer q(number of particle appear and disappear event, ≤60000) and k(dimensions of the hyperspace that the hyperspace the device generated, ≤5). Then follows q lines. In each line, the first integer ‘od’ represents the event: od = 0 means this is an appear
event. Then follows k integer(with absolute value less then 4 × 10⁷). od = 1 means this is an disappear event. Follows a integer p represents the disappeared particle appeared in the pth event.

 

Output

Each test case should contains q lines. Each line contains a integer represents the maximum manhattan distance among paticles.

 

Sample Input

 

Sample Output

 

Source

 

Recommend

zhuyuanchen520

#include<iostream>

#include<cstdio>

#include<cstring>

#include<set>

using namespace std;

const int N=;

const double INF=1e20;

int n,m,num[N][];

//map<int,int,greater<int> > mp[1<<5];

multiset<int> mst[<<];

multiset<int>::iterator it1,it2;

int main(){

    //freopen("input.txt","r",stdin);

    while(~scanf("%d%d",&n,&m)){

        for(int i=;i<(<<);i++)

            mst[i].clear();

        int od,x;

        for(int i=;i<=n;i++){

            scanf("%d",&od);

            if(od==){

                for(int j=;j<m;j++)

                    scanf("%d",&num[i][j]);

                for(int j=;j<(<<m);j++){

                    int sum=;

                    for(int k=;k<m;k++){

                        if(j&(<<k))

                            sum+=num[i][k];

                        else

                            sum-=num[i][k];

                    }

                    mst[j].insert(sum);

                }

            }else{

                scanf("%d",&x);

                for(int j=;j<(<<m);j++){

                    int sum=;

                    for(int k=;k<m;k++){

                        if(j&(<<k))

                            sum+=num[x][k];

                        else

                            sum-=num[x][k];

                    }

                    it1=mst[j].find(sum);

                    mst[j].erase(it1);

                }

            }

            int ans=;

            //map<int,int>::iterator it1,it2;

            for(int j=;j<(<<m);j++){

                it1=mst[j].end();

                it1--;

                it2=mst[j].begin();

                ans=max(ans,(*it1)-(*it2));

            }

            printf("%d\n",ans);

        }

    }

    return ;

}