Submission #495755

#	Time	Username	Problem	Language	Result	Execution time	Memory
495755		Ierus	Segments (IZhO18_segments)	C++17	0 / 100	5057 ms	5716 KiB

segments

#include<bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
using namespace std;
#pragma GCC optimize ("unroll-loops,Ofast,O3")
#pragma GCC target("avx,avx2,fma")
#define F first
#define S second
#define sz(x) (int)x.size()
#define pb push_back
#define eb emplace_back
#define all(x) (x).begin(),(x).end()
#define rall(x) (x).rbegin(),(x).rend()
#define NFS ios_base::sync_with_stdio(0) , cin.tie(0) , cout.tie(0) ;
#define file(s) if (fopen(s".in", "r")) freopen(s".in", "r", stdin), freopen(s".out", "w", stdout)
#define ordered_set tree<pair<int,int>, null_type,less<pair<int,int>>, rb_tree_tag,tree_order_statistics_node_update>
typedef long long ll;
const int E = 1e6+777;
const long long inf = 1e18+777;
const int N = 1e5+777;
const int MOD = 1e9+7;
int que, t, last, tim;
pair<int,int> pr[N];
ordered_set  st;
int get(int L, int R, int k, int res = 0){
	for(auto[x, y] : st){
		int l1, r1, l2, r2;
		if(x < L){
			l1 = x, r1 = y, l2 = L, r2 = R;
		}else{
			l1 = L, r1 = R, l2 = x, r2 = y; 
		}
		int cur = max(0, min(r1, r2) - max(l1, l2) + 1);
		if(cur >= k) ++res;
	}
	return res;
}
int main(){NFS;
	cin >> que >> t;
	for(int type; que--;){
		cin >> type;
		if(type == 1){
			int a, b;
			cin >> a >> b;
			a = (a ^ (t * last));
			b = (b ^ (t * last));
			if(a > b)swap(a, b);
			pr[++tim] = {a, b};
			st.insert({a, b});
		}else if(type == 2){
			int id; cin >> id;
			st.erase(pr[id]);
		}else{
			int l, r, k;
			cin >> l >> r >> k;
			l = (l ^ (t * last));
			r = (r ^ (t * last));
			if(l > r) swap(l, r);
			if(k == 1){
				int R = st.order_of_key({r+1, (int)0});	
				int L = st.order_of_key({l, (int)0});
//				cerr << "L: " << L << " R: " << R << '\n';
				last = R - L ;
			}else{
				last = get(l, r, k);
			}
			cout << last << '\n';
		}
	}
};
/*
5 0
1 1 5
1 1 4
1 1 3
3 1 5 1
3 1 3 1
*/

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