Submission #1129402

#	Time	Username	Problem	Language	Result	Execution time	Memory
1129402		Gray	Segments (IZhO18_segments)	C++20	7 / 100	5093 ms	5276 KiB

segments

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define ull unsigned long long
#define ld long double
#define ff first
#define ss second
#define ln "\n"
#define mp make_pair

const ll INF = 2e18;
const ll MOD = 1e9+7;

void solve(){
    ll n, t; cin >> n >> t;
    ll id=1;
    set<pair<ll, pair<ll, ll>>> elem;
    ll lastans=0;
    while (n--){
        ll typ; cin >> typ;
        if (typ==1){
            ll a, b; cin >> a >> b;
            a^=(t*lastans); b^=(t*lastans);
            if(a>b) swap(a, b);
            // cout << id << "-" << a << "-" << b << ln;
            elem.insert({id, {a, b}}); id++;

        }else if (typ==2){
            ll x; cin >> x;
            // cout << x << "-" << (*elem.lower_bound({x, {0, 0}})).ff << ln;
            elem.erase(elem.lower_bound({x, {0, 0}}));
        }else{
            ll l, r, k; cin >> l >> r >> k;
            l^=(t*lastans); r^=(t*lastans);
            if (l>r) swap(l, r);
            ll res=0;
            for (auto &ch:elem){
                if (min(ch.ss.ss, r)-max(ch.ss.ff, l)+1>=k) res++;
            }
            cout << res << ln;
            lastans=res;
        }
    }
}

int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    auto start = chrono::high_resolution_clock::now();
    ll t=1;
    // cin >> t;
    while (t--) solve();
    #ifdef LOCAL
    auto duration = chrono::duration_cast<chrono::microseconds>(chrono::high_resolution_clock::now() - start);
    cout << setprecision(0) << fixed << "time: " << (double)duration.count()/1000.0 << " milliseconds" << endl;
    #endif
}

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