Submission #65893611

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Source Code Expand

#include<bits/stdc++.h>
using namespace std;
int read(){int f=0,x=0;char a=getchar();while(!isdigit(a)){if(a=='-')f=1;a=getchar();}while(isdigit(a)){x=x*10+a-'0';a=getchar();}if(f)return -x;return x;}
int h,w,n,q,x,y,op;
set<int>hh[200007],lp[200007];
int main()
{
    //freopen(in.in,r,stdin);
    //freopen(out.out,w,stdout);
    ios::sync_with_stdio(false);
    cin.tie(0);
    cin>>h>>w>>n;
    for(int i=1;i<=n;i++)
    {
        cin>>x>>y;
        hh[x].insert(y);
        lp[y].insert(x);
    }
    cin>>q;
    while(q--)
    {
        cin>>op>>x;
        if(op==1)
        {
            cout<<hh[x].size()<<'\n';
            for(auto i:hh[x])
            {
                lp[i].erase(x);
            }
            hh[x].clear();
        }
        else
        {
            cout<<lp[x].size()<<'\n';
            for(auto i:lp[x])
            {
                hh[i].erase(x);
            }
            lp[x].clear();
        }
    }
    return 0;
}

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