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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#385383#7765. Xor Mastervaleriu#Compile Error//C++204.8kb2024-04-10 18:32:172024-07-04 03:35:00

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你现在查看的是最新测评结果

  • [2024-07-04 03:35:00]
  • 评测
  • [2024-04-10 18:32:17]
  • 提交

answer

#pragma GCC optimize("Ofast,fast-math")
#pragma GCC target("avx,avx2,sse3,sse4")
#include <bits/stdc++.h>
#define all(x) (x).begin(),(x).end()
using namespace std;

using ll = long long;
using ull = unsigned long long;
using ld = long double;

//#define int ll
#define sz(x) ((int)(x).size())

using pii = pair<int,int>;
using tii = tuple<int,int,int>;

const int bmax = 64;

namespace Basis {
   ull pivot[bmax];
   ull contrmsk[bmax];
   ull control = 0;
   ull flippers = 0;
   
   bool add(ull x) {
      for(int i = bmax - 1; i >= 0; i--) {
         if(pivot[i] == 0 && ((1ull << i) & x)) {
            pivot[i] = x;
            break;
         }
         else if(pivot[i] != 0 && ((1ull << i) & x))
            x ^= pivot[i];
      }
      if(x == 0) return 0;
      for(int i = 0; i < bmax; i++) {
         if(pivot[i] == 0) continue;
         for(int j = i + 1; j < bmax; j++) {
            if(pivot[j] & (1ull << i))
               pivot[j] ^= pivot[i];
         }
      }
      
      control = 0;
      flippers = 0;
      for(int contra = 0; contra < bmax; contra++) {
         contrmsk[contra] = 0;
         if(pivot[contra] != 0) {
            control |= (1ull << contra);
            continue;
         }
         for(int i = contra + 1; i < bmax; i++)
            if(pivot[i] & (1ull << contra)) contrmsk[contra] |= (1ull << i);
            
         if(__builtin_popcountll(contrmsk[contra]) % 2 == 1)
            flippers |= (1ull << contra);
      }
      
      return 1;
   }
   
   ull get_val(ull a) {
      ull R = 0;
      for(int i = 0; i < bmax; i++) {
         if(pivot[i] != 0) continue;
         R |= ((ull)((__builtin_popcountll(a & contrmsk[i]) & 1) 
                  ^ ((a & (1ull << i))? 1 : 0))) << i;
      }
      return R;
   }
}

pii operator +(const pii& x, const pii& y) {
   return pii{x.first + y.first, x.second + y.second};
}

pii flip(const pii& x) { return pii{x.second, x.first}; }

struct Node {
   int cnt[bmax], len;
   ull txor;
   Node() {
      for(int i = 0; i < bmax; i++) cnt[i] = 0;
      len = 1;
      txor = 0;
   }
   Node(ull a) {
      for(int i = 0; i < bmax; i++) cnt[i] = 0;
      len = 0;
      txor = a;
   }
   
   void pull(const Node L, const Node R) {
      for(int i = 0; i < bmax; i++) cnt[i] = L.cnt[i] + ((L.txor & (1ull << i))? R.len - R.cnt[i] : R.cnt[i]);
      txor = L.txor ^ R.txor;
      len = L.len + R.len;
   }
};

const int N = (1 << 19) + 5;  // limit for array size

template<typename Node>
struct AINT {
   int n;  // array size
   Node t[2 * N];
   
   void init(int n_) { 
      int p = 1;
      while(p < n_) p *= 2;
      n = p;
   }
   void build() {  // build the tree
     for (int i = n - 1; i > 0; --i) t[i].pull(t[i<<1], t[i<<1|1]);
   }

   void modify(int p, Node value) {  // set value at position p
      p--;
      for (t[p += n] = value; p > 1; p >>= 1) t[p>>1].pull(t[min(p, p^1)], t[max(p, p^1)]);
   }

   Node query(int l, int r) {  // sum on interval [l, r)
     --l;
     Node resL(0), resR(0);
     for (l += n, r += n; l < r; l >>= 1, r >>= 1) {
       if (l&1) resL.pull(resL, t[l++]);
       if (r&1) resR.pull(t[--r], resR);
     }
     resL.pull(resL, resR);
     return resL;
   }
};

signed main() {
   cin.tie(0) -> sync_with_stdio(0);
   int n, q;
   cin >> n >> q;
   
   AINT<Node> aint;
   aint.init(n);
   
   vector<ull> v(n + 1), real(n + 1);
   for(auto &x : v | views::drop(1)) cin >> x;
   real = v;
   
   auto update = [&](int p, ull x) {
      v[p] ^= Basis::get_val(x);
      real[p] ^= x;
      Node H;
      H.pull(Node(v[p]), Node());
      aint.modify(p, H);
   };
   
   auto reformat = [&]() {
      for(int i = 1; i <= n; i++)  {
         v[i] = Basis::get_val(real[i]);
         Node H;
         H.pull(Node(v[i]), Node());
         aint.t[i + aint.n - 1] = H;
      }
      aint.build();
      
      return;
   };
   
   auto query = [&](int l, int r) -> ull {
      ull rez = 0;
      Node elem(Basis::flippers);
      
      elem.pull(elem, aint.query(l, r));
      
      for(int i = 0; i < bmax; i++)
         rez += elem.cnt[i] * (1ull << i);
      return rez;
   };
   
   reformat();
   for(int i = 0; i < q; i++) {
      int T;
      cin >> T;
      if(T == 1) {
         int p; 
         ull x;
         cin >> p >> x;
         update(p, x); 
      }
      
      else if(T == 2) {
         ull x;
         cin >> x;
         if(Basis::add(x)) {
            reformat();
         }
      }
      
      else {
         int l, r;
         cin >> l >> r;
         cout << query(l, r) + Basis::control * (ull)(r - l + 1) << '\n';
      }
   }
   
}

/**
  Anul asta nu se da centroid
  -- Rugaciunile mele
*/

Details

In file included from /usr/include/c++/13/string:43,
                 from /usr/include/c++/13/bitset:52,
                 from /usr/include/x86_64-linux-gnu/c++/13/bits/stdc++.h:52,
                 from answer.code:3:
/usr/include/c++/13/bits/allocator.h: In destructor ‘constexpr std::_Vector_base<long long unsigned int, std::allocator<long long unsigned int> >::_Vector_impl::~_Vector_impl()’:
/usr/include/c++/13/bits/allocator.h:184:7: error: inlining failed in call to ‘always_inline’ ‘constexpr std::allocator< <template-parameter-1-1> >::~allocator() noexcept [with _Tp = long long unsigned int]’: target specific option mismatch
  184 |       ~allocator() _GLIBCXX_NOTHROW { }
      |       ^
In file included from /usr/include/c++/13/vector:66,
                 from /usr/include/c++/13/functional:64,
                 from /usr/include/x86_64-linux-gnu/c++/13/bits/stdc++.h:53:
/usr/include/c++/13/bits/stl_vector.h:133:14: note: called from here
  133 |       struct _Vector_impl
      |              ^~~~~~~~~~~~