Submission #495777

#	Time	Username	Problem	Language	Result	Execution time	Memory
495777		vinnipuh01	Segments (IZhO18_segments)	C++17	7 / 100	5072 ms	2960 KiB

segments

#include <iostream>
#include <bits/stdc++.h>
#include <cmath>
#include <algorithm>
#include <vector>
#include <deque>
#include <set>
#include <stack>
#include <string>
#include <map>
#include <queue>

using namespace std;

const long long oo = 1000000000000000000;

long long int  sum, ans = 0, mx = 0, mn = 1000000000, num, pos;


/*
    ViHHiPuh

   (( `'-""``""-'` ))
     )-__-_.._-__-(
   / --- (o _ o) --- \
   \ .-* ( .0. ) *-. /
   _'-. ,_ '=' _, .-'_
  / `;#'#'# - #'#'#;` \
 \_)) -----'#'----- ((_/
      # --------- #
  '# ------- ------ #'
  /..-'# ------- #'-.\
  _\...-\'# -- #'/-.../_
  ((____)- '#' -(____))


    cout << fixed << setprecision(6) << x;


    freopen ( "sum.in", "r", stdin )
*/

set <pair<int, pair<int, int> > > st;
multiset <pair<int, int> > s;

int main () {
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
	int n, m, t, l, r, x, ll, rr;
	cin >> n >> m;
	ans = 0;
	for ( int query = 1; query <= n; query ++ ) {
		cin >> t >> l;
		if ( t == 1 ) {
			cin >> r;
			l = ( l ^ ( m * ans ) );
			r = ( r ^ ( m * ans ) );
			if ( l > r )
				swap( l, r );
			num ++;
			if ( n <= 5000 )
				st.insert( { num, make_pair( l, r ) } );
			else
				s.insert( { l, r } );
		}
		else if ( t == 2 ) {
			st.erase( st.lower_bound( { l, make_pair( 0, 0 ) } ) );
		}
		else {
			cin >> r >> x;
			l = ( l ^ ( m * ans ) );
			r = ( r ^ ( m * ans ) );
			if ( l > r )
				swap( l, r );
			if ( r - l + 1 < x ) {
				cout << 0 << "\n";
				continue;
			}
			ans = 0;
			if ( n <= 5000 ) {
				for ( auto i : st ) {
					if ( i.second.second >= l && i.second.first <= r ) {
						ll = max( i.second.first, l );
						rr = min( i.second.second, r );
						if ( rr - ll + 1 >= x )
							ans ++;
					}
				}
			}
			else {
				auto it = s.lower_bound( { l - ( num ), 0 } );
				while ( it != s.end() && ( r - it->first + 1 ) >= x ) {
					ll = max( it->first, l );
					rr = min( it->second, r );
					if ( rr - ll + 1 >= x )
						ans ++;
					it = ++it;
				}
			}
			cout << ans << "\n";
		}
	}
}


/*
6 1
1 1 2
3 2 4 2
1 3 5
3 2 3 1
2 1
3 0 3 1

6 0
1 3 10
1 3 5
3 6 10 6
2 1
1 3 10
3 6 4 2
*/

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