Submission #1027640

#	Time	Username	Problem	Language	Result	Execution time	Memory
1027640		blacktulip	Trampoline (info1cup20_trampoline)	C++17	100 / 100	1158 ms	112328 KiB

trampoline

#include <bits/stdc++.h>

using namespace std;

typedef long long lo; 

#define fi first
#define se second
#define endl "\n"
#define pb push_back
#define int long long
#define fio() ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL)
#define FOR for(int i=1;i<=n;i++)
#define mid ((start+end)/2)
#define ort ((bas+son)/2)
#define _ << " " <<

const lo inf = 1000000000;
const lo li = 500005;
const lo mod = 1000000007;

int n,m,a[li],k,flag,t,x[li],y[li],r,c,xs[li],xh[li],ys[li],yh[li],fa[li][32];
int cev;
string s;
vector<int> v,vv[li];

int32_t main(void){
	fio();
	cin>>r>>c>>n;
	FOR{
		cin>>x[i]>>y[i];
		v.pb(x[i]);
	}
	cin>>t;
	for(int i=1;i<=t;i++){
		cin>>xs[i]>>ys[i]>>xh[i]>>yh[i];
	}
	sort(v.begin(),v.end());
	int sayac=0;
	map<int,int> mpp;
	for(int i=0;i<(int)v.size();i++){
		if(i==0 || v[i]!=v[i-1]){
			sayac++;
			mpp[v[i]]=sayac;
		}
	}
	map<pair<int,int>,int> mapp;
	for(int i=1;i<=n;i++){
		vv[mpp[x[i]]].pb(y[i]);
		mapp[{x[i],y[i]}]=i;
	}
	for(int i=1;i<=sayac;i++)sort(vv[i].begin(),vv[i].end());
	for(int i=1;i<=n;i++){
		int at=mpp[x[i]+1];
		int tut=lower_bound(vv[at].begin(),vv[at].end(),y[i])-vv[at].begin();
		if(tut==(int)vv[at].size())fa[i][0]=0;
		else fa[i][0]=mapp[{x[i]+1,vv[at][tut]}];
		//~ cout<<i _ fa[i][0]<<endl;
	}
	for(int j=1;j<=20;j++){
		FOR fa[i][j]=fa[fa[i][j-1]][j-1];
	}
	for(int i=1;i<=t;i++){
		if(xh[i]==xs[i]){
			if(ys[i]<=yh[i]){cout<<"Yes\n";continue;}
			cout<<"No\n";continue;
		}
		if(xh[i]-xs[i]>n){cout<<"No\n";continue;}
		int at=mpp[xs[i]];
		int tut=lower_bound(vv[at].begin(),vv[at].end(),ys[i])-vv[at].begin();
		if(tut==(int)vv[at].size()){cout<<"No\n";continue;}
		int node=mapp[{xs[i],vv[at][tut]}];
		//~ cout<<node<<" ()() \n";
		for(int j=20;j>=0;j--){
			if(fa[node][j]==0 || x[fa[node][j]]>=xh[i])continue;
			node=fa[node][j];
			//~ cout<<fa[node][j] _ node _ j<<" AA\n";
		}
		//~ cout<<i _ node _ x[node] _ y[node]<<endl;
		if(x[node]!=xh[i]-1){cout<<"No\n";continue;}
		at=mpp[x[node]];
		tut=lower_bound(vv[at].begin(),vv[at].end(),y[node])-vv[at].begin();
		if(tut==(int)vv[at].size()){cout<<"No\n";continue;}
		if(vv[at][tut]>yh[i]){cout<<"No\n";continue;}
		cout<<"Yes\n";
	}
	return 0;
}

• Subtask 1: 23 / 23
• Subtask 2: 20 / 20
• Subtask 3: 11 / 11
• Subtask 4: 19 / 19
• Subtask 5: 27 / 27