Submission #890540

#	Time	Username	Problem	Language	Result	Execution time	Memory
890540		Alfraganus	Segments (IZhO18_segments)	C++17	0 / 100	5058 ms	7924 KiB

segments

#pragma GCC optimize("unroll-loops")
#pragma gcc optimize("Ofast")
#pragma GCC optimization("Ofast")
#pragma optimize(Ofast)
#include <bits/stdc++.h>
using namespace std;

#define int long long
#define str string
#define fastio ios::sync_with_stdio(0), cin.tie(0);
#define fs first
#define ss second
#define endl '\n'
#define all(x) (x).begin(), (x).end()
#define len(x) x.size()

#define print(a)          \
    for (auto &x : a)     \
        cout << x << " "; \
    cout << endl;

#define printmp(a)    \
    for (auto &x : a) \
        cout << x.fs << " " << x.ss.fs << ' ' << x.ss.ss << endl;

const int mod = 998244353;

void solve(){
    int n, t;
    cin >> n >> t;
    map<int, pair<int, int>> mp;
    set<int> free;
    for(int i = 0; i < n; i ++)
        free.insert(i + 1);
    int lastans = 0;
    for(int i = 0; i < n; i ++){
        int type;
        cin >> type;
        if(type == 1){
            int l, r;
            cin >> l >> r;
            l = l ^ (t * lastans);
            r = r ^ (t * lastans);
            if(l > r)
                swap(l, r);
            mp[*free.begin()] = {l, r};
            free.erase(free.begin());
        }
        else if(type == 2){
            int x;
            cin >> x;
            mp.erase(x);
            free.insert(x);
        }
        else{
            int l, r, k;
            cin >> l >> r >> k;
            l = l ^ (t * lastans);
            r = r ^ (t * lastans);
            if(l > r)
                swap(l, r);
            int ans = 0;
            for(auto x : mp){
                pair<int, int> y = x.ss;
                int pl = max(l, y.fs), pr = min(r, y.ss);
                if(pr - pl > k)
                    ans ++;
            }
            cout << ans << endl;
            lastans = ans;
        }
    }
}

signed main()
{
    fastio int t = 1;
    // cin >> t;
    while (t--)
    {
        solve();
        cout << endl;
    }
}

Compilation message (stderr)

segments.cpp:2: warning: ignoring '#pragma gcc optimize' [-Wunknown-pragmas]
    2 | #pragma gcc optimize("Ofast")
      | 
segments.cpp:3: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
    3 | #pragma GCC optimization("Ofast")
      | 
segments.cpp:4: warning: ignoring '#pragma optimize ' [-Wunknown-pragmas]
    4 | #pragma optimize(Ofast)
      |

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