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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#385232#7765. Xor Mastervaleriu#0 1549ms4624kbC++202.8kb2024-04-10 16:47:532024-07-04 03:33:54

Judging History

你现在查看的是最新测评结果

  • [2024-07-04 03:33:54]
  • 评测
  • 测评结果:0
  • 用时:1549ms
  • 内存:4624kb
  • [2024-04-10 16:47:53]
  • 提交

answer

#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;
   
   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;
      for(int contra = 0; contra < bmax; contra++) {
         if(pivot[contra] != 0) {
            contrmsk[contra] = 0;
            control |= (1ull << contra);
            continue;
         }
         for(int i = contra + 1; i < bmax; i++)
            if(pivot[i] & (1ull << contra)) contrmsk[contra] |= (1ull << i);
      }
      
      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) 
                  ^ (__builtin_popcountll(contrmsk[i]) & 1)
                  ^ ((a & (1ull << i))? 1 : 0))) << i;
      }
      return R;
   }
}

signed main() {
   cin.tie(0) -> sync_with_stdio(0);
   int n, q;
   cin >> n >> q;
   
   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;
   };
   
   auto reformat = [&]() {
      for(int i = 1; i <= n; i++) v[i] = Basis::get_val(real[i]);
      return;
   };
   
   auto query = [&](int l, int r) -> ull {
      ull rez = 0, part = 0;
      for(int i = l; i <= r; i++)
         part ^= v[i],
         rez += part;
      return rez;
   };
   
   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

Tip: Click on the bar to expand more detailed information

Subtask #1:

score: 0
Wrong Answer

Test #1:

score: 0
Wrong Answer
time: 2ms
memory: 3560kb

input:

2000 2000
1860495733 462603674 3739839441 759356520 47330263 550811730 2301200895 989240351 2499503801 2624225494 2123076812 1180966826 238739434 488666688 784742950 2583466952 4111371941 2335988605 2583741355 933716686 1644403538 1970423306 304500250 905101643 1814942168 1136358764 88729799 1577263...

output:

867006634793
3418049036989
1658469159497
794670034691
239792547603
1587489101990
592222190840
1343829229567
971235609706
571701308760
1219913933321
588622962923
2129364200509
1007100395808
3134493164996
3145027621038
2599298085956
1729302186341
837940435945
242569415869
2908005634977
1692554597386
1...

result:

wrong answer 24th lines differ - expected: '1870376108278', found: '1869972343054'

Subtask #2:

score: 0
Time Limit Exceeded

Test #5:

score: 0
Time Limit Exceeded

input:

500000 100000
12261386944926786495 7846697792998647383 16622924885320463714 170129022271213944 12625257523700625864 7684671687986103560 11532026873918423068 1131776055566669037 8263146651412710501 17872572061246021001 5017109039248728310 11088626167542318645 13810119722795416818 10928315716094262229...

output:

12337138966997790840
11593856511006775316
5653988472748567965
6281173414355612100
18027435777450732541
2903343914316621940
9422461876307420631
76690753587353877
798850376670823348
10137130634921141648
13914431888234873359
10192090671035653185
11569745711967074397
12303071505845046803
637460082558284...

result:


Subtask #3:

score: 0
Skipped

Dependency #2:

0%

Subtask #4:

score: 0
Wrong Answer

Test #15:

score: 0
Wrong Answer
time: 1549ms
memory: 4624kb

input:

100000 100000
860905160 3192911636 290327446 2020707113 959258245 454185039 421895589 1070265496 2218913641 1684685660 1206723673 2606734467 4247254571 3341954386 3805299640 1702270353 2472053741 2816060613 1307901348 2702949728 879391505 884661815 330738731 1575749344 1239158446 2099693858 67466644...

output:

208850661211321
125437627681115
162403457716877
63123265692583
33026732316991
89306551164325
36797686363855
40774372735902
13922167514639
267287536820212
192012766560090
276346312013230
11190422279392
133872370392306
92664486229410
179295642780970
46156540478905
232640800325745
184977510249728
11022...

result:

wrong answer 1st lines differ - expected: '208755389215975', found: '208850661211321'

Subtask #5:

score: 0
Skipped

Dependency #4:

0%

Subtask #6:

score: 0
Skipped

Dependency #1:

0%

Subtask #7:

score: 0
Skipped

Dependency #1:

0%