Submission #495761

#	Time	Username	Problem	Language	Result	Execution time	Memory
495761		armashka	Segments (IZhO18_segments)	C++17	0 / 100	5094 ms	3840 KiB

segments

#include <bits/stdc++.h>
 
//#pragma comment(linker, "/stack:200000000")
//#pragma GCC optimize("Ofast")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
 
#define fast ios_base::sync_with_stdio(false);cin.tie(nullptr);cout.tie(nullptr);
#define all(v) v.begin(),v.end()
#define pb push_back
#define sz size()
#define ft first
#define sd second
 
using namespace std;
typedef long long ll;
typedef pair<ll, ll> pll;
typedef unsigned long long ull;
 
const int N = 3e5 + 5;
const ll M = 1e8;
const ll inf = 1e3;
const ll mod = 1e9;
const double Pi = acos(-1); 
 
ll binpow(ll x, ll ti) { ll res = 1;while (ti){if(ti & 1)res *= x;x *= x;ti >>= 1; x %= mod; res %= mod;} return res;}
ll binmul(ll x, ll ti) { ll res = 0;while (ti){if(ti & 1)res += x;x += x;ti >>= 1; x %= mod; res %= mod;} return res;}
ll nok(ll a, ll b) { return (a*b)/__gcd(abs(a),abs(b)) * (a*b > 0 ? 1 : -1); }
bool odd(ll n) { return (n % 2 == 1); }
bool even(ll n) { return (n % 2 == 0); }            

int n, t, last, cur;
multiset<pair<int,pair<int, int>>> st;
pair<int,int> seg[N];

const void solve(/*Armashka*/) {
    cin >> n >> t;
    while (n --) {
        int type; cin >> type;
        if (type == 1) {
            int a, b;
            cin >> a >> b;
            int l = a ^ (t * last), r = b ^ (t * last);
            if (l > r) swap(l, r);
            st.insert({cur + 1, {l, r}});
            seg[++ cur] = {l, r};
        } else if (type == 2) {
            int id; cin >> id;
            st.erase({id, seg[id]});
            seg[id] = {0, 0};
            -- cur;
        } else {
            int a, b, k, ans = 0;
            cin >> a >> b >> k;
            int l = a ^ (t * last), r = b ^ (t * last);
            if (l > r) swap(l, r);
            for (auto cur : st) {
                int x = cur.sd.ft, y = cur.sd.sd;
                if (max(x, l) <= min(y, r)) {
                    int cnt = min(y, r) - max(x, l) + 1;
                    if (cnt >= k) ++ ans;
                }
            }
            cout << ans << "\n";
            last = ans;
        }
    }
}
 
signed main() {
    fast;
	//freopen("divide.in", "r", stdin);
	//freopen("divide.out", "w", stdout);
    int tt = 1;
    // cin >> tt;
    while (tt --) {
    	solve();
	}
}

/*
5 4 4
1 2
3 1
3 4
5 3
4 5 2 3
2 1 3 1
1 3 5
2 3 4 5
2 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