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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#344613#8214. Huge Oil PlatformSolitaryDream#TL 6434ms4084kbC++172.4kb2024-03-04 20:25:232024-03-04 20:25:23

Judging History

你现在查看的是最新测评结果

  • [2024-03-04 20:25:23]
  • 评测
  • 测评结果:TL
  • 用时:6434ms
  • 内存:4084kb
  • [2024-03-04 20:25:23]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
#define FOR(i,s,t) for(int i=(s),_t=(t); i<=_t; ++i)
typedef double db;
typedef long long ll;
struct Point {
    ll x,y;
    Point operator -(const Point &s) const{
        return {x-s.x,y-s.y};
    }
    db Len() const{
        return hypot(x,y);
    }
};
ll det(Point a,Point b) {
    return a.x*b.y-a.y*b.x;
}
ll dot(Point a,Point b) {
    return a.x*b.x+a.y*b.y;
}
const int N=405;
Point a[N];
int w[N];
vector<db> X;
struct node {
    db ans,lmx,rmx,sum;
} T[N<<2];
#define ls p<<1
#define rs p<<1|1
#define lson L,mid,ls
#define rson mid+1,R,rs
void build(int L,int R,int p) {
    T[p]={0,0,0,-(X[R]-X[L])*2};
    if(L==R) return ;
    int mid=L+R>>1;
    build(lson);
    build(rson);
}
void Insert(int L,int R,int p,int x,int v) {
    if(L==R) {
        T[p].ans+=v;
        T[p].lmx+=v;
        T[p].rmx+=v;
        T[p].sum+=v;
        return ;
    }
    int mid=L+R>>1;
    if(x<=mid) Insert(lson,x,v);
    else Insert(rson,x,v);
    db d=(X[mid+1]-X[mid])*2;
    T[p].ans=max({T[ls].ans,T[rs].ans,T[ls].rmx+T[rs].lmx-d});
    T[p].lmx=max(T[ls].lmx,T[ls].sum+T[rs].lmx-d);
    T[p].rmx=max(T[rs].rmx,T[rs].sum+T[ls].rmx-d);
    T[p].sum=T[ls].sum+T[rs].sum-d;
}
int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cout << fixed << setprecision(12);
    int n;
    cin >> n;
    // n=400;
    db res=0;
    FOR(i,1,n) {
        int x,y;
        cin >> x >> y >> w[i];
        // x=rand()%10000,y=rand()%10000,w[i]=rand()%10000;
        a[i]={x,y};
        res=max(res,(db)w[i]);
    }
    FOR(i,1,n) FOR(j,1,n) if(i!=j) {
        vector<tuple<db,db,int>> vec;
        X.clear();
        FOR(k,1,n) if(det(a[j]-a[i],a[k]-a[i])>=0) {
            db y=det(a[j]-a[i],a[k]-a[i])/(a[j]-a[i]).Len();
            db x=dot(a[j]-a[i],a[k]-a[i])/(a[j]-a[i]).Len();
            X.push_back(x);
            vec.push_back({y,x,w[k]});
        }
        sort(X.begin(),X.end());
        X.erase(unique(X.begin(),X.end()),X.end());
        sort(vec.begin(),vec.end());
        build(0,X.size()-1,1);
        for(auto [y,x,v]: vec) {
            int p=lower_bound(X.begin(),X.end(),x)-X.begin();
            // cerr << i << ' ' << j << ' ' << v << endl;
            Insert(0,X.size()-1,1,p,v);
            res=max(res,T[1].ans-y*2);
        }
    }
    cout << res << '\n';
    return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 1ms
memory: 4004kb

input:

2
1 1 1
3 3 1

output:

1.000000000000

result:

ok found '1.0000000', expected '1.0000000', error '0.0000000'

Test #2:

score: 0
Accepted
time: 0ms
memory: 3824kb

input:

3
4 5 5
4 6 7
1 3 8

output:

10.100505063388

result:

ok found '10.1005051', expected '10.1005051', error '0.0000000'

Test #3:

score: 0
Accepted
time: 0ms
memory: 3828kb

input:

2
0 0 1
1000000 1000000 1000000000

output:

1000000000.000000000000

result:

ok found '1000000000.0000000', expected '1000000000.0000000', error '0.0000000'

Test #4:

score: 0
Accepted
time: 1ms
memory: 3948kb

input:

20
328 207 21
365 145 188
347 79 41
374 335 699
288 250 97
32 267 131
296 332 434
2 91 36
139 43 21
26 455 696
57 135 410
14 500 396
255 181 646
103 114 593
309 351 787
207 316 138
440 416 806
413 349 695
413 201 501
455 396 442

output:

6092.442712623782

result:

ok found '6092.4427126', expected '6092.4427126', error '0.0000000'

Test #5:

score: 0
Accepted
time: 0ms
memory: 3868kb

input:

20
38 207 766
202 485 964
257 466 900
205 486 738
166 53 716
61 94 881
252 165 182
63 292 612
225 278 242
224 242 566
381 196 702
56 494 997
268 288 884
379 227 3
357 271 975
55 73 678
260 55 623
399 369 515
116 354 580
404 239 950

output:

11878.257312827458

result:

ok found '11878.2573128', expected '11878.2573128', error '0.0000000'

Test #6:

score: 0
Accepted
time: 1ms
memory: 3920kb

input:

20
249 215 320
38 48 229
457 366 56
36 142 186
44 96 935
97 190 143
215 218 123
116 486 291
304 232 463
429 297 29
479 475 97
97 198 405
69 395 121
381 121 926
137 197 972
410 91 218
87 421 737
117 390 144
319 287 170
353 302 754

output:

5573.255896932631

result:

ok found '5573.2558969', expected '5573.2558969', error '0.0000000'

Test #7:

score: 0
Accepted
time: 1ms
memory: 3860kb

input:

20
474 215 66
376 120 6
367 259 211
362 293 34
416 407 554
133 292 894
171 278 871
459 187 674
383 192 980
352 78 899
83 27 684
138 185 709
357 234 359
390 241 40
418 124 161
258 348 462
408 59 851
110 184 668
28 447 761
20 131 367

output:

8510.595617883411

result:

ok found '8510.5956179', expected '8510.5956179', error '0.0000000'

Test #8:

score: 0
Accepted
time: 6368ms
memory: 4080kb

input:

400
979422 264252 76260
922920 334464 58710
87057 798078 39652
602478 649867 49073
388746 161788 44501
727471 373113 28061
944959 505744 22145
191465 164645 49421
102241 771049 65953
44911 762286 34082
112779 537040 98117
688054 585935 53647
391845 931395 55355
788464 698271 91449
984533 409449 8331...

output:

35610300.744289875031

result:

ok found '35610300.7442899', expected '35610300.7442899', error '0.0000000'

Test #9:

score: 0
Accepted
time: 6399ms
memory: 4080kb

input:

400
972392 809281 95619
19054 872671 65516
732236 376176 38922
412232 147107 36902
242843 486112 34287
311141 416172 5612
453695 775962 79060
806457 678364 29585
324358 953486 58858
532543 378842 67089
20301 449627 86941
252735 242252 66239
335667 454693 40007
563783 444579 49920
663605 128448 3095
...

output:

35334006.330976814032

result:

ok found '35334006.3309768', expected '35334006.3309768', error '0.0000000'

Test #10:

score: 0
Accepted
time: 6376ms
memory: 4020kb

input:

400
718289 727141 23905
849810 500522 44241
890554 385825 70996
597411 423432 99133
994251 463004 32770
388843 280170 47562
664865 319482 48403
353770 474376 52218
508270 890719 28901
80661 697191 77469
459811 411012 23750
741501 408373 60551
163462 269625 56148
406785 260156 41900
337932 855364 578...

output:

36725958.767186865211

result:

ok found '36725958.7671869', expected '36725958.7671869', error '0.0000000'

Test #11:

score: 0
Accepted
time: 6400ms
memory: 3964kb

input:

400
6840 184362 43862
608935 154893 10000000
746897 683314 71237
255918 899062 94342
478185 102216 1923
890855 323689 44654
467417 577805 20
919997 267591 21891
303668 171438 29365
324647 818449 18945
229942 874921 22870
174645 613823 31193
559386 859851 36262
156698 936021 86194
968031 522125 75799...

output:

36590958.860493369401

result:

ok found '36590958.8604934', expected '36590958.8604934', error '0.0000000'

Test #12:

score: 0
Accepted
time: 6397ms
memory: 3868kb

input:

400
213928 419916 45837
334919 278535 7824
100882 416988 26147
682280 524709 85794
569137 589867 48913
344075 156956 4813
87794 655931 25690
285467 798402 55113
295984 894760 44628
535011 461670 72400
917862 461662 90830
544780 751382 81071
588022 966874 10000000
872058 880760 39315
216881 626161 22...

output:

46173511.871992304921

result:

ok found '46173511.8719923', expected '46173511.8719923', error '0.0000000'

Test #13:

score: 0
Accepted
time: 6415ms
memory: 3952kb

input:

400
937407 829281 77362
837708 843713 34574
77624 684540 68232
786430 452449 38426
486327 341660 86859
964636 122535 12764
699975 284575 84208
806142 721010 10955
464680 787842 37887
395874 727033 70790
59849 84503 90263
557124 876914 45080
168385 390089 16463
6894 13302 8291
380410 621577 47431
992...

output:

45704049.961534261703

result:

ok found '45704049.9615343', expected '45704049.9615343', error '0.0000000'

Test #14:

score: 0
Accepted
time: 6378ms
memory: 4004kb

input:

400
769436 473525 91179
925212 211008 73863
393798 496395 71452
241696 745916 92387
519975 24414 32489
867615 821099 81949
644522 605802 2383
237926 379309 38924
389221 50127 90627
201042 315597 28025
314735 422671 18588
616409 476289 21284
397182 521279 80524
190834 918992 35979
405770 829871 41232...

output:

46077961.212134353817

result:

ok found '46077961.2121344', expected '46077961.2121344', error '0.0000000'

Test #15:

score: 0
Accepted
time: 6388ms
memory: 3928kb

input:

400
661885 939867 75528
487494 846559 71593
290098 369543 36755
931898 794760 63921
480058 761470 19842
426135 379317 3551
627245 832185 26033
598705 59485 2540
941138 844706 6210
377586 312034 96388
398374 295001 41568
874081 558382 41501
933464 285407 30933
444410 590787 18450
950252 399446 44906
...

output:

45282826.919197022915

result:

ok found '45282826.9191970', expected '45282826.9191970', error '0.0000000'

Test #16:

score: 0
Accepted
time: 6372ms
memory: 3928kb

input:

400
569839 791389 68749
839674 777277 63933
863326 968947 6358
180942 20818 69013
875946 210141 10000000
321824 169791 90333
877709 273385 90285
135978 546433 47341
46246 441438 70141
12053 496729 17675
576117 666429 46856
197452 968179 51530
509363 87403 55583
193224 750277 97047
7722 889000 70489
...

output:

55534449.243508413434

result:

ok found '55534449.2435084', expected '55534449.2435084', error '0.0000000'

Test #17:

score: 0
Accepted
time: 6386ms
memory: 4000kb

input:

400
256630 187847 11194
897382 694378 18835
350562 923633 99933
205851 958234 8647
715754 266300 68929
684673 719293 82041
304184 162766 99040
699035 219131 15513
315331 32273 49150
339042 179271 60962
241294 982748 68635
660080 88445 99207
162427 641286 80190
199541 249437 72499
204956 414509 32836...

output:

56842720.232543796301

result:

ok found '56842720.2325438', expected '56842720.2325438', error '0.0000000'

Test #18:

score: 0
Accepted
time: 6386ms
memory: 3992kb

input:

400
891557 241099 10125
316914 425364 32054
657652 448853 28433
475110 718140 83424
425448 596023 65334
128996 426213 53829
813917 692602 28723
693896 817142 8591
16046 375611 26923
184028 990969 58048
498854 915662 79220
77435 469326 15270
775143 697151 56
20169 991072 37373
922109 871304 73982
369...

output:

55025500.341025002301

result:

ok found '55025500.3410250', expected '55025500.3410250', error '0.0000000'

Test #19:

score: 0
Accepted
time: 6424ms
memory: 4012kb

input:

400
828767 606397 14986
448568 868264 52625
863674 833593 12260
21259 513438 86242
392594 387534 62680
397658 426280 79956
392196 731597 51319
57619 697219 15776
566541 946740 81803
858232 528140 60149
572906 197112 83601
167809 31160 61928
192638 668070 66133
988108 900482 83698
356771 210640 8457
...

output:

55207053.561489328742

result:

ok found '55207053.5614893', expected '55207053.5614893', error '0.0000000'

Test #20:

score: 0
Accepted
time: 6400ms
memory: 4024kb

input:

400
652930 388986 93092
175667 5066 79475
824559 456628 46198
405436 976444 9728
98439 824664 37902
133984 824519 62538
44592 247702 80017
956993 633946 8159
333726 672264 48680
929512 627435 71532
53499 861432 23848
254670 396688 79430
266385 903784 73840
775791 937341 40023
938364 85706 20447
9444...

output:

66199867.482260145247

result:

ok found '66199867.4822601', expected '66199867.4822602', error '0.0000000'

Test #21:

score: 0
Accepted
time: 6408ms
memory: 3928kb

input:

400
327433 225448 72419
180629 560500 97932
246413 886763 87194
36579 660354 5583
576311 650681 58242
480636 727717 18522
522922 331330 57537
147188 727126 24744
718669 159276 33254
861143 15648 21698
727055 664167 5898
653626 350031 91550
723519 303309 73005
480206 179059 70729
219329 901693 73987
...

output:

65993994.757541052997

result:

ok found '65993994.7575411', expected '65993994.7575411', error '0.0000000'

Test #22:

score: 0
Accepted
time: 6366ms
memory: 4076kb

input:

400
843902 857131 60014
26310 422832 50339
738436 522415 41915
169028 339593 61310
951478 200194 12415
730116 19247 56519
769040 958693 61076
405104 32233 57682
27255 130563 31613
748330 322448 11181
129992 265273 45001
764569 206047 21608
922901 189481 88493
551608 525267 82388
939239 414554 41669
...

output:

65858330.023249611259

result:

ok found '65858330.0232496', expected '65858330.0232496', error '0.0000000'

Test #23:

score: 0
Accepted
time: 6434ms
memory: 4084kb

input:

400
194443 446536 18933
834480 99470 53935
336848 345002 41697
707312 237775 9771
873005 845270 13646
409784 683252 96882
409557 562036 81118
545905 637225 17578
252812 251471 13038
583122 763953 26440
771214 473649 40389
367234 166473 42042
887080 249162 64664
251593 420947 88496
616004 527987 1948...

output:

65937260.836047492921

result:

ok found '65937260.8360475', expected '65937260.8360475', error '0.0000000'

Test #24:

score: 0
Accepted
time: 5865ms
memory: 3992kb

input:

400
12000 15000 680
11000 1000 591
17000 5000 519
8000 11000 858
13000 10000 311
8000 18000 395
14000 9000 877
13000 3000 287
12000 1000 941
4000 16000 984
14000 18000 649
16000 11000 658
11000 3000 384
15000 17000 4
9000 9000 54
14000 17000 792
4000 1000 663
8000 1000 264
15000 12000 266
4000 10000...

output:

122036.000000000000

result:

ok found '122036.0000000', expected '122036.0000000', error '0.0000000'

Test #25:

score: 0
Accepted
time: 5850ms
memory: 3988kb

input:

400
4000 8000 938
6000 15000 810
3000 12000 418
11000 10000 371
3000 0 827
11000 8000 698
15000 15000 472
3000 6000 882
14000 20000 102
7000 12000 316
16000 8000 670
1000 12000 762
8000 4000 870
14000 6000 444
5000 17000 738
17000 20000 805
13000 15000 783
6000 5000 265
3000 13000 250
13000 1000 78
...

output:

128699.000000000000

result:

ok found '128699.0000000', expected '128699.0000000', error '0.0000000'

Test #26:

score: 0
Accepted
time: 5892ms
memory: 4024kb

input:

393
501977 499949 1064
501419 499972 9173
500849 499948 9603
500589 499952 6032
504175 499982 4549
501116 499970 1533
500453 499968 982
500011 499934 6882
501220 499934 8645
504473 499950 2317
503158 499959 1540
503053 499979 5786
501377 499989 7154
500421 500000 3273
500014 499937 9631
500223 49998...

output:

2073525.000000000000

result:

ok found '2073525.0000000', expected '2073525.0000000', error '0.0000000'

Test #27:

score: 0
Accepted
time: 5920ms
memory: 4024kb

input:

396
498773 499704 5151
498639 499979 6010
498813 500339 5372
499052 500511 5691
499749 499597 927
498679 500163 6899
499191 500563 6999
499988 500081 2093
498654 500099 3267
499856 499695 6590
499344 499422 3869
499293 499422 4747
498637 500001 4148
499229 500571 932
499980 500109 5609
499505 500545...

output:

2064044.078404508298

result:

ok found '2064044.0784045', expected '2064044.0784045', error '0.0000000'

Test #28:

score: -100
Time Limit Exceeded

input:

400
40303 40303 1453
390251 390251 1312
253614 253614 1546
139586 139586 1412
24575 24575 941
183821 183821 1502
236903 236903 1209
231988 231988 979
384353 384353 1162
146467 146467 1170
112062 112062 1684
355846 355846 1593
230022 230022 1513
302764 302764 1552
87487 87487 1599
28507 28507 997
331...

output:


result: