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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#204160#7182. Very Sparse TableNemanjaSo2005AC ✓1650ms46524kbC++141.7kb2023-10-07 04:32:312023-10-07 04:32:32

Judging History

你现在查看的是最新测评结果

  • [2023-10-07 04:32:32]
  • 评测
  • 测评结果:AC
  • 用时:1650ms
  • 内存:46524kb
  • [2023-10-07 04:32:31]
  • 提交

answer

#include<bits/stdc++.h>
#define ll long long
using namespace std;
int N;
set<pair<int,int>> E;
vector<pair<int,int>> V;
set<int> S[70000];
bool cmp(pair<int,int> a,pair<int,int> b){
   int x=a.second-a.first;
   int y=b.second-b.first;
   return x<y;
}
void dodaj(int a,int b){
   if(b==a+1)
      return;
   E.insert({a,b});
   return;
}
void resi(int L,int R){
   if(R-L+1<=4)
      return;
   vector<int> H;
   H.push_back(L-1);
   int sq=round(sqrt(R-L+1));
   for(int i=L+sq-1;i<=R;i+=sq){
      H.push_back(i);
     // cout<<i<<endl;
   }
   H.push_back(R+1);
   for(int i=1;i+1<H.size();i++){
      for(int j=H[i-1]+1;j<H[i];j++)
         dodaj(j,H[i]);
      for(int j=H[i]+1;j<H[i+1];j++)
         dodaj(H[i],j);
   }
   for(int i=1;i+1<H.size();i++)
      for(int j=i+1;j+1<H.size();j++)
         dodaj(H[i],H[j]);
   for(int i=1;i<H.size();i++)
      resi(H[i-1]+1,H[i]-1);
}
int main(){
   cin>>N;
   for(int i=0;i<N;i++)
      S[i].insert(i+1);
   resi(0,N);
   for(auto it=E.begin();it!=E.end();it++)
      V.push_back(*it);
   sort(V.begin(),V.end(),cmp);
   cout<<V.size()<<"\n";
   for(int i=0;i<V.size();i++){
      int a=V[i].first;
      int c=V[i].second;
      int b;
      for(auto it=S[a].begin();it!=S[a].end();it++){
         int k=*it;
         if(S[k].find(c)!=S[k].end()){
            b=k;
            break;
         }
      }
      cout<<a<<" "<<b<<" "<<c<<endl;
      S[a].insert(c);
   }
   int Q;
   cin>>Q;
   while(Q--){
      int a,b;
      cin>>a>>b;
      cout<<a<<" ";
      while(a!=b){
         auto it=S[a].upper_bound(b);
         it--;
         a=*it;
         cout<<a<<" ";
      }
      cout<<endl;
   }
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 1ms
memory: 6684kb

input:

9
45
0 1
0 2
0 3
0 4
0 5
0 6
0 7
0 8
0 9
1 2
1 3
1 4
1 5
1 6
1 7
1 8
1 9
2 3
2 4
2 5
2 6
2 7
2 8
2 9
3 4
3 5
3 6
3 7
3 8
3 9
4 5
4 6
4 7
4 8
4 9
5 6
5 7
5 8
5 9
6 7
6 8
6 9
7 8
7 9
8 9

output:

8
0 1 2
2 3 4
3 4 5
5 6 7
6 7 8
2 3 5
5 6 8
2 5 8
0 1 
0 2 
0 2 3 
0 2 4 
0 2 5 
0 2 5 6 
0 2 5 7 
0 2 8 
0 2 8 9 
1 2 
1 2 3 
1 2 4 
1 2 5 
1 2 5 6 
1 2 5 7 
1 2 8 
1 2 8 9 
2 3 
2 4 
2 5 
2 5 6 
2 5 7 
2 8 
2 8 9 
3 4 
3 5 
3 5 6 
3 5 7 
3 5 8 
3 5 8 9 
4 5 
4 5 6 
4 5 7 
4 5 8 
4 5 8 9 
5 6 
5 7 ...

result:

ok edges: 8

Test #2:

score: 0
Accepted
time: 0ms
memory: 6784kb

input:

30
465
0 1
0 2
0 3
0 4
0 5
0 6
0 7
0 8
0 9
0 10
0 11
0 12
0 13
0 14
0 15
0 16
0 17
0 18
0 19
0 20
0 21
0 22
0 23
0 24
0 25
0 26
0 27
0 28
0 29
0 30
1 2
1 3
1 4
1 5
1 6
1 7
1 8
1 9
1 10
1 11
1 12
1 13
1 14
1 15
1 16
1 17
1 18
1 19
1 20
1 21
1 22
1 23
1 24
1 25
1 26
1 27
1 28
1 29
1 30
2 3
2 4
2 5
2 6...

output:

51
1 2 3
27 28 29
25 26 27
23 24 25
21 22 23
19 20 21
17 18 19
15 16 17
13 14 15
11 12 13
9 10 11
7 8 9
5 6 7
3 4 5
26 27 29
17 19 20
5 7 8
14 15 17
20 21 23
2 3 5
23 25 26
11 13 14
8 9 11
23 25 27
11 13 15
1 2 5
13 14 17
5 7 9
7 8 11
25 26 29
17 19 21
19 20 23
23 27 28
24 25 29
0 1 5
18 19 23
17 21...

result:

ok edges: 51

Test #3:

score: 0
Accepted
time: 291ms
memory: 7052kb

input:

736
200000
170 268
126 166
565 723
664 735
61 524
226 234
146 314
217 272
294 713
115 381
563 706
74 567
552 614
120 211
472 620
213 432
488 623
447 564
96 129
331 354
79 677
50 547
174 568
56 129
189 227
55 701
244 253
264 715
154 220
380 657
46 390
53 161
325 537
666 696
64 465
391 659
284 448
207...

output:

2687
73 74 75
451 452 453
449 450 451
446 447 448
80 81 82
78 79 80
444 445 446
76 77 78
441 442 443
439 440 441
436 437 438
434 435 436
454 455 456
628 629 630
630 631 632
71 72 73
431 432 433
429 430 431
191 192 193
193 194 195
427 428 429
68 69 70
633 634 635
66 67 68
458 459 460
169 170 171
171 ...

result:

ok edges: 2687

Test #4:

score: 0
Accepted
time: 1648ms
memory: 46156kb

input:

65536
200000
51949 58727
7943 43298
6290 7369
41493 53070
24229 36675
28087 49947
11703 48217
19923 24739
2144 59777
53830 56793
13509 37211
2300 38595
27415 42879
24616 48531
58341 63327
20628 38407
48616 60290
7450 61685
37010 47595
22164 42732
19181 29850
35383 43587
39257 44397
19340 45183
34523...

output:

358274
4245 4246 4247
4243 4244 4245
40727 40728 40729
56127 56128 56129
49475 49476 49477
60289 60290 60291
40729 40730 40731
40731 40732 40733
49473 49474 49475
20513 20514 20515
40733 40734 40735
40735 40736 40737
4247 4248 4249
49471 49472 49473
20511 20512 20513
20509 20510 20511
49469 49470 49...

result:

ok edges: 358274

Test #5:

score: 0
Accepted
time: 0ms
memory: 6768kb

input:

0
0

output:

0

result:

ok edges: 0

Test #6:

score: 0
Accepted
time: 2ms
memory: 6736kb

input:

1
1
0 1

output:

0
0 1 

result:

ok edges: 0

Test #7:

score: 0
Accepted
time: 1ms
memory: 6708kb

input:

2
3
0 1
0 2
1 2

output:

0
0 1 
0 1 2 
1 2 

result:

ok edges: 0

Test #8:

score: 0
Accepted
time: 2ms
memory: 6748kb

input:

3
6
0 1
0 2
0 3
1 2
1 3
2 3

output:

0
0 1 
0 1 2 
0 1 2 3 
1 2 
1 2 3 
2 3 

result:

ok edges: 0

Test #9:

score: 0
Accepted
time: 1588ms
memory: 46524kb

input:

65535
200000
35006 46944
17075 57351
24605 50445
5938 60705
15221 40233
28599 38915
1132 35574
8555 31494
13644 35806
44940 55401
9503 59206
21011 26540
41156 62487
57510 64305
9254 25610
17301 47249
34083 49167
48018 64394
38855 62175
15464 22525
23728 60275
54028 63810
22711 53902
5984 48625
5838 ...

output:

358274
4245 4246 4247
4243 4244 4245
40727 40728 40729
56127 56128 56129
49475 49476 49477
60289 60290 60291
40729 40730 40731
40731 40732 40733
49473 49474 49475
20513 20514 20515
40733 40734 40735
40735 40736 40737
4247 4248 4249
49471 49472 49473
20511 20512 20513
20509 20510 20511
49469 49470 49...

result:

ok edges: 358274

Test #10:

score: 0
Accepted
time: 1650ms
memory: 46108kb

input:

64800
200000
55124 62263
24992 39760
32262 37059
25987 42889
10413 64701
7223 43221
45810 63205
11437 29357
10814 52096
1154 36319
10730 54157
18473 26729
9152 23374
5426 12744
3502 37577
5559 37160
30503 62433
12426 47332
14933 62086
8781 21527
27180 53773
29658 46742
20592 61553
8337 27197
8024 38...

output:

354285
46256 46257 46258
26191 26192 26193
4753 4754 4755
26193 26194 26195
46262 46263 46264
46260 46261 46262
26195 26196 26197
26197 26198 26199
4755 4756 4757
46258 46259 46260
46264 46265 46266
26199 26200 26201
4757 4758 4759
26201 26202 26203
46254 46255 46256
26203 26204 26205
46252 46253 46...

result:

ok edges: 354285

Extra Test:

score: 0
Extra Test Passed