QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#431878 | #5830. 树 | Crying | 20 | 1575ms | 562244kb | C++14 | 1.8kb | 2024-06-06 11:25:43 | 2024-06-06 11:25:44 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
const int MAXN = 1e6+10,MA = 20;
int n,q,v[MAXN]; vector<int> e[MAXN];
int pre[MAXN],buc[MAXN],dep[MAXN],to[MAXN][MA],cnt[MAXN][MA][2],dfn[MAXN],dtot;
ll f[MAXN][MA];
void dfs(int u){
pre[u] = buc[dep[u]],buc[dep[u]] = u; dfn[++dtot] = u;
to[u][0] = to[pre[u]][0];
f[u][0] = f[pre[u]][0] + v[u];
for(int i=0;i<MA;i++)cnt[u][i][v[u]>>i&1]++;
for(auto v : e[u]){
dep[v] = dep[u]+1;
dfs(v);
to[u][0] = v;
for(int i=0;i<MA;i++)for(int j=0;j<2;j++)cnt[u][i][j] += cnt[v][i][j];
}
}
ll Q(int x,int k){
if(!x)return 0;
int p = x; for(int j=MA-1;j>=0;j--)if(k>>j&1)p = to[p][j];
ll ans = 0;
int q = x;
for(int j=MA-1;j>=0;j--)if(k>>j&1){
ans += f[q][j]; q = to[q][j];
int c[2] = {cnt[q][j][0]-cnt[p][j][0],cnt[q][j][1]-cnt[p][j][1]};
ans += 1ll * (c[0]-c[1]) * (1<<j);
}
return ans;
}
int main(){
ios::sync_with_stdio(false); cin.tie(0);
cin>>n;
for(int i=1;i<=n;i++)cin>>v[i];
for(int i=2,p;i<=n;i++)cin>>p,e[p].push_back(i);
dfs(1);
for(int i=n;i>=1;i--)for(int j=1;j<MA;j++)to[i][j] = to[to[i][j-1]][j-1];
for(int i=1;i<=n;i++){
int u = dfn[i];
for(int j=0;j<MA;j++)for(int k=0;k<2;k++)cnt[u][j][k] += cnt[pre[u]][j][k];
}
for(int i=n;i>=1;i--){
for(int j=1;j<MA;j++){
f[i][j] = f[i][j-1] + f[to[i][j-1]][j-1];
int p = to[i][j-1],q = to[i][j];
int c[2] = {cnt[p][j-1][0]-cnt[q][j-1][0],cnt[p][j-1][1]-cnt[q][j-1][1]};
f[i][j] += 1ll * (c[0]-c[1]) * (1<<(j-1));
}
}
cin>>q;
while(q--){
int x,k; cin>>x>>k; k++;
ll ans = Q(x,k) - Q(pre[x],k);
cout<<ans<<"\n";
}
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 0
Wrong Answer
time: 7ms
memory: 34776kb
input:
2000 946347867 341162491 202762650 295215762 254064439 66267204 693162580 357612557 492940637 939526638 59775103 374919339 144042807 861369313 651043728 999024805 439554916 167782038 597475252 56704409 69846137 22185655 79439847 769194737 145071391 226046618 915359433 392527325 84982946 54584098 827...
output:
31727996563 558747809 12352523 830684779042 81109471557 585197158 1628586765 922104954 8179034002 55032862871 1832814618 1719999173 57622639685 2418952903 118234180921 63795755455 403506301009 1458062157 529977884079 708763390 974312741 22160481283 541384937 113212700648 755479297 465075002 51201629...
result:
wrong answer 4th numbers differ - expected: '864526657694', found: '830684779042'
Test #2:
score: 0
Wrong Answer
time: 58ms
memory: 77652kb
input:
99999 792064428 473106195 799314986 65440734 948726345 442414256 280245405 873012700 466192412 899092866 283555341 657824017 963883713 793944180 767444438 105576842 542107696 580140098 65321660 381184238 584604194 397414881 861590124 309323011 217641157 120832524 303744205 961590116 110259426 380351...
output:
2509771019 102808896745 528899856 125427731 1953894159 -42625724686 197086499985 586671581 187927602236 798898621 468901916 1620113250 25990778 1594379152 3535933560 353694206557 1721547881 1491500623 142910958434 353694206557 263989598 1350176621 500678054027 727716410 1144261338296 1849681495 5865...
result:
wrong answer 6th numbers differ - expected: '2464509509394', found: '-42625724686'
Test #3:
score: 10
Accepted
time: 1569ms
memory: 562244kb
input:
1000000 947727010 179844140 923847675 171881267 5552129 974443359 989307850 869400987 126992154 527448411 141137718 136124474 917813105 392020809 79012342 473860575 969007624 833563354 90169336 878445705 84352622 403307122 733751738 670851448 942399068 731541999 101293644 545785337 964751520 9168003...
output:
322288180595345 64144900444023 131621992874362 185914449206495 4835864536999 52498320047300 91107191167946 133549265294890 287851078359140 123171067016186 128593134440538 8701280311335 14021811618693 65043919486113 310510908841731 15605852792829 75072265994522 73630260235120 66821009550818 217424650...
result:
ok 1000000 numbers
Test #4:
score: 10
Accepted
time: 1575ms
memory: 562172kb
input:
1000000 264862971 751386013 921867736 711577153 262726588 565608444 975324815 440219681 107888226 928241413 729126923 283912914 86248857 896446999 12839598 651796991 139813366 105131395 341646170 839485925 939265720 844548518 102280410 457829889 8602879 737140565 17206920 974175632 535833885 8373832...
output:
1437301063221 97809309869545 338628270305337 233680181746714 7398781587300 271306073103235 20877473367084 90775179215463 2535173725689 66604505519276 211534325021331 84757341592614 17886216279466 132051595671397 1860377236584 46253790496717 83950882453932 257274371637175 240943229927301 118446604805...
result:
ok 1000000 numbers
Test #5:
score: 0
Wrong Answer
time: 783ms
memory: 470632kb
input:
1000000 978606419 773027389 111265179 979476504 280718851 476857501 751854950 579263969 848569548 781051974 31782627 533831186 812822170 111553645 297770650 331144396 676977983 2236128 258203325 75591120 676466973 60056446 494411414 286185093 92474576 173276071 535648669 87210101 355790411 880267291...
output:
2258826661 938786622 1803221827 20412967786 11943681449 2783437365 41181595551 2720451454 1859550937 476794111 986063591 1579646962 14494868585 38176990 781099105 527479272 2392930136 2519423502 1620138021 23553905552 5107065078 6903424087 1206547828 34867978779 49589751 499629803 4275328259 1379311...
result:
wrong answer 7th numbers differ - expected: '16665953904', found: '41181595551'
Test #6:
score: 0
Wrong Answer
time: 802ms
memory: 470304kb
input:
1000000 952470566 585754087 120174600 401525004 458588768 5487567 31210348 446333263 231409083 521960132 457721893 866842852 925207283 16805978 4706826 99640835 619272676 136536623 459247161 308807462 633687300 717271369 23906473 865522890 173799280 424309108 719410673 118906385 110627845 730629403 ...
output:
994051214 904057442 5205910500 145488261318 190185745355 976251948 369701890 43760580 1510389651 3077329408 2634025913591 716198149 190685967 310640954711 709722957617 557364187 1084839575 3104092 276690929 -183190904341 467852673 33049527 -152710527786 218578612032 474813613152 426018723 694554152 ...
result:
wrong answer 3rd numbers differ - expected: '2995278795', found: '5205910500'
Test #7:
score: 0
Wrong Answer
time: 790ms
memory: 474852kb
input:
1000000 732367509 105027907 958920212 886798715 102486738 813075884 301085392 242303497 979657287 944859684 307768 438158233 561755409 740706505 791145209 283862713 828081846 771569552 59044985 600549571 191330226 438693570 36976319 810654215 220068818 771875421 740642902 839964155 206129566 2065543...
output:
999908753 401770479 1240960415200 -133533954948 120552832668 3048712491190 1146711843 219130830522 2910590132 4981801495 1079679207 2140524944 75514756 451917308594 2507720790075 -1126649764908 190116652690 1085743066 92693707594 597726354572 516500710858 990736484 -3185027414089 1021620355564 41593...
result:
wrong answer 3rd numbers differ - expected: '206278425790162', found: '1240960415200'
Test #8:
score: 0
Wrong Answer
time: 717ms
memory: 473412kb
input:
1000000 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ...
output:
165823105 96010863 18972590 28 94121264 71907918 0 124529621 47395 1 3 1 1 1 1 0 -17224704 1 0 27467200 8 0 0 3 0 65379243 1 0 0 0 0 145076969 -11608278 0 301348 321015803 10 83426561 10440296 1 1 10296029 7168686 3 654749026 0 145237958 2 1 4 604056949 6 7873107 0 146940762 85718517 3 13 1 3 303458...
result:
wrong answer 1st numbers differ - expected: '3826404725', found: '165823105'
Test #9:
score: 0
Wrong Answer
time: 740ms
memory: 476220kb
input:
1000000 465660691 982007525 816592310 377030959 572981469 679249520 86377999 709561525 940473306 35102782 886143915 792819787 903287397 264564177 857982095 91486434 217197704 123118964 383387342 820268798 497623987 255010796 607884194 848568529 38169627 197987657 421323589 664004905 485409127 696844...
output:
96094116015 480270751648 1429748824089 56478014531 275400654 1384234654 64716568 95454147115 395495962055 100740674311 4065141579395 528398853 1456723425 1214744688 533742649350 23475037 1530174818130 245789356 109738951 420357802367 1397666358094 102619945 1620400919978 1556076353 977517555809 7640...
result:
wrong answer 2nd numbers differ - expected: '8243992183131', found: '480270751648'
Test #10:
score: 0
Wrong Answer
time: 740ms
memory: 480052kb
input:
1000000 665830082 788228483 245541444 289601309 641764988 150723484 925214020 557415731 310210969 379707835 517820381 883917428 134445288 775557009 444476671 89856268 655841087 888410254 37788122 694551869 563331754 488108584 839551943 415095075 445425438 35452604 562044723 640544531 146258096 66852...
output:
431856043 520373616 657641206086 412292034933 1597660849801 129023773576 762015332 359781238032 1184478776 594507511 597696604001 2951089847709 306250439 62500137 763858857173 786078000 141943454692 4162775188 224349564696 877965179 218547169284 1013123764 184682579633 159894698587 542306751 1978036...
result:
wrong answer 3rd numbers differ - expected: '77562434895287', found: '657641206086'