Submission #887652

#	Time	Username	Problem	Language	Result	Execution time	Memory
887652		pcc	Segments (IZhO18_segments)	C++14	0 / 100	18 ms	10324 KiB

segments

#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define pll pair<ll,ll>
#define pii pair<int,int>
#define fs first
#define sc second
#define tlll tuple<ll,ll,ll>

const int mxn = 5050;
int Q,t;
set<int> id;
pii arr[mxn];
int preans = 0;

int main(){
	ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
	cin>>Q>>t;
	for(int i = 1;i<=Q;i++)id.insert(i);
	while(Q--){
		int tp;
		cin>>tp;
		if(tp == 1){
			int l,r;
			cin>>l>>r;
			l = l^(t*preans);
			r = r^(t*preans);
			arr[*id.begin()] = {l,r};
			id.erase(*id.begin());
		}
		else if(tp == 2){
			int tar;
			cin>>tar;
			id.insert(tar);
			arr[tar] = {-1,-1};
		}
		else{
			int l,r,v;
			cin>>l>>r>>v;
			l = l^(t*preans);
			r = r^(t*preans);
			if(r<l)swap(l,r);
			int tans = 0;
			for(int i = 1;i<=*id.rbegin();i++){
				pii range = {max(arr[i].fs,l),min(arr[i].sc,r)};
				if(range.sc-range.fs+1>=v)tans++;
			}
			cout<<(preans = tans)<<'\n';
		}
	}
	return 0;
}

• Subtask 1: 0 / 7
• Subtask 2: 0 / 15
• Subtask 3: 0 / 16
• Subtask 4: 0 / 17
• Subtask 5: 0 / 20
• Subtask 6: 0 / 25