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QOJ
ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#431883 | #5830. 树 | Crying | 20 | 1600ms | 562184kb | C++14 | 1.9kb | 2024-06-06 11:33:30 | 2024-06-06 11:33:32 |
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--){
int u = dfn[i];
for(int j=1;j<MA;j++)to[u][j] = to[to[u][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;
}
详细
Test #1:
score: 0
Wrong Answer
time: 6ms
memory: 32744kb
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:
93562797525 558747809 12352523 14314640081 8505590826 585197158 1628586765 922104954 8179034002 12369344526 1832814618 1719999173 28977703452 2418952903 8644836955 20805786003 60352946639 1458062157 31398460836 708763390 974312741 22160481221 541384937 16723053352 755479297 465075002 51201629 950537...
result:
wrong answer 1st numbers differ - expected: '31727996563', found: '93562797525'
Test #2:
score: 0
Wrong Answer
time: 74ms
memory: 83044kb
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 6436315211 528899856 125427731 1953894159 26392676484 102137108383 586671581 18278764698 798898621 468901916 1620113250 25990778 1594379152 3535933560 12941170290 1721547881 1491500623 14636587253 12941170290 263989598 1350176621 8689948014 727716410 15686024432 1849681495 1925816579 9713...
result:
wrong answer 2nd numbers differ - expected: '102808896745', found: '6436315211'
Test #3:
score: 10
Accepted
time: 1560ms
memory: 562184kb
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: 1600ms
memory: 562176kb
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: 751ms
memory: 469784kb
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 43208511706 30287611849 2783437365 41181595551 2720450858 1859550937 476794111 986063591 1579646962 14494868585 38176990 781099105 527479272 2392930136 2519423502 1620138021 5102485044 7534577049 6903424087 1206547828 12018279859 49589751 499629803 7188393771 13793119...
result:
wrong answer 4th numbers differ - expected: '20412967786', found: '43208511706'
Test #6:
score: 0
Wrong Answer
time: 813ms
memory: 471288kb
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:
-6898182465 904057442 5205910500 32056922189 32973679199 976251948 -2571469038 43760580 1510389651 3077329408 20312172933 716198149 190685751 19536879911 21440224770 557364187 -13813513744 3104092 -10264268635 17294021944 -15836865722 -12431616770 -3537488427 8944089373 9310522798 426018723 -1916787...
result:
wrong answer 1st numbers differ - expected: '994051214', found: '-6898182465'
Test #7:
score: 0
Wrong Answer
time: 792ms
memory: 475988kb
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 11832493104 27674421664 28054843270 75832446140 1146711843 27900783136 2910590132 4981801495 1079679207 2140524944 -12135277034 26287832592 56162167402 -11650500854 38870201815 -22764650417 11306856959 28145343211 32551079552 990736484 15443575689 13481987423 13656652674 34769680...
result:
wrong answer 3rd numbers differ - expected: '206278425790162', found: '11832493104'
Test #8:
score: 0
Wrong Answer
time: 737ms
memory: 473704kb
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:
3145420 4905217 3790110 28 2212686 4951201 0 2075746 30292 1 3 1 1 1 1 0 5710734 1 0 2402811 8 0 0 3 0 651865 1 0 0 0 0 7027885 1285123 0 867088 4223068 10 2707113 215224 1 1 199426 581738 3 2946294 0 4728139 2 1 4 2182781 6 2624908 0 8746475 6414696 3 13 1 3 -2636942 1 8035393 3 0 1 0 2 -940260 1 5...
result:
wrong answer 1st numbers differ - expected: '3826404725', found: '3145420'
Test #9:
score: 0
Wrong Answer
time: 888ms
memory: 476712kb
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:
54227963514 9333823226 39157249575 9451644711 275400654 1384234654 64716568 41635431053 30269201769 6406740696 18712326917 528398853 1456723425 1214744688 10159367008 23475037 52232548322 245789356 109738951 26161973053 21631883648 102619945 13596613317 1556076353 14666313046 31507163349 978264700 7...
result:
wrong answer 1st numbers differ - expected: '96094116015', found: '54227963514'
Test #10:
score: 0
Wrong Answer
time: 752ms
memory: 480448kb
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 31159218916 14599824618 33382346071 11597531249 762015332 17617433297 1184478776 594507511 22179141906 25261679207 306250439 62500137 17387770249 786078000 20357453512 4162775188 22017440434 877965179 15693320481 1013123764 13228415101 11005788921 542306751 1978036157 937968345 1...
result:
wrong answer 3rd numbers differ - expected: '77562434895287', found: '31159218916'