Submission #893667

#	Time	Username	Problem	Language	Result	Execution time	Memory
893667		vjudge1	Segments (IZhO18_segments)	C++17	0 / 100	5026 ms	10004 KiB

segments

// 以上帝的名义
// 候选硕士
#include <bits/stdc++.h>

#ifdef local
#include "algo/debug.h"
#else
#define dbg(x...) 0
#endif

using namespace std ;
using ll = long long ;
using ld = long double ;

struct Fenwick {
   vector<ll> t ;
   int n;
   Fenwick(int len) {
      n = len ;
      t.assign(n + 1, 0) ;
   }
   void upd(int i, ll x) {
      while (i <= n) {
         t[i] += x;
         i += (i & (-i)) ;
      }
   }
   ll get(int i) {
      ll sum = 0 ;
      while (i) {
         sum += t[i] ;
         i -= (i & (-i)) ;
      }
      return sum ;
   }
   ll get(int l, int r) {
      return get(r) - get(l - 1) ;
   }
};

int32_t main() {
    ios::sync_with_stdio(false) ;
    cin.tie(nullptr) ;
    int n , t; cin >> n >> t ;
    int last = 0 ;
    int idx = 0 ;
    pair<int,int> pr[n + 1] ;
    multiset<pair<int,int>> s ;
    Fenwick f(n * 5) ;
    for (int i = 0 ; i < n ; i++) {
        int cmd ; cin >> cmd ;
        if (cmd == 1) {
            int a , b; cin >> a >> b ;
            int l = (a ^ (t * last)) ;
            int r = (b ^ (t * last)) ;
            if (l > r) swap(l, r) ;
            pr[++idx]= {l, r} ;
            for (int j = l ; j <= r ; j++) f.upd(j, 1) ;
        } else if (cmd == 2) {
            int ind ; cin >> ind ;
            auto c = pr[ind] ;
            for (int j = c.first ; j <= c.second ; j++) f.upd(j, -1) ;
        } else {
            int a, b, k ; cin >> a >> b >> k ;
            int l = (a ^ (last * t)) ;
            int r = (b ^ (last * t)) ;
            cout << "query -> " << l << ' ' << r << " " << k << "\n" ;
            if (l > r) swap(l, r) ;
            ll sum = f.get(l, r) ;
            sum = (sum) / k ;
            cout << sum << "\n" ;
            last = sum ;
        }
    }
    return 0 ;
}

// 希望白银

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