QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#516773 | #4401. Prize | hotboy2703 | 0 | 874ms | 203824kb | C++14 | 2.8kb | 2024-08-12 21:26:55 | 2024-08-12 21:26:56 |
Judging History
answer
#include<bits/stdc++.h>
using ll = int;
using namespace std;
#define pll pair <ll,ll>
#define fi first
#define se second
#define MP make_pair
#define sz(a) (ll((a).size()))
#define BIT(mask,i) (((mask) >> (i))&1)
#define MASK(i) (1LL << (i))
const ll MAXN = 5e5+100;
const ll MAXK = 19;
ll n,k,q,t;
struct tree{
vector <ll> g[MAXN];
ll depth[MAXN];
ll sp[MAXN][MAXK];
vector <pll> adj[MAXN];
ll dp[MAXN];
vector <ll> choose;
ll in[MAXN],timeDFS;
void dfs(ll u,ll p){
sp[u][0] = p;
in[u] = ++timeDFS;
for (ll j = 1;j < MAXK;j ++){
sp[u][j] = sp[sp[u][j-1]][j-1];
}
depth[u] = depth[p]+1;
choose.push_back(u);
for (auto v:g[u]){
if (v==p)continue;
dfs(v,u);
}
}
ll lca(ll u,ll v){
if (depth[u] > depth[v])swap(u,v);
for (ll j = MAXK-1;j >= 0;j --){
if (depth[sp[v][j]] >= depth[u])v = sp[v][j];
}
if (u==v)return u;
for (ll j = MAXK-1;j >= 0;j--){
if (sp[v][j] != sp[u][j])u = sp[u][j],v = sp[v][j];
}
return u;
}
ll root=-1;
void add(ll u,ll v,ll wu,ll wv){
ll LCA = lca(u,v);
if (root==-1||depth[LCA]<depth[root])root=LCA;
adj[LCA].push_back(MP(u,wu));
adj[u].push_back(MP(LCA,wu));
adj[LCA].push_back(MP(v,wv));
adj[v].push_back(MP(LCA,wv));
}
void solve(){
// for (ll i = 1;i <= n;i ++){
// if (dp[i] == 0){
queue <ll> q;
q.push(root);
while (!q.empty()){
ll u = q.front();
q.pop();
for (auto [v,w]:adj[u]){
if (v != u && dp[v] == 0){
dp[v] = dp[u] + (depth[u] > depth[v] ? -1 : + 1) * w;
q.push(v);
}
}
}
// }
// }
}
ll query(ll u,ll v){
ll LCA = lca(u,v);
return dp[u] + dp[v] - dp[LCA]*2;
}
} a1,a2;
int main(){
ios_base::sync_with_stdio(0);cin.tie(nullptr);
cin>>n>>k>>q>>t;
ll r1,r2;
for (ll i = 1;i <= n;i ++){
ll x;
cin>>x;
if (x!=-1){
a1.g[x].push_back(i);
a1.g[i].push_back(x);
}
else r1 = i;
}
// cout<<"OK"<<endl;
for (ll i = 1;i <= n;i ++){
ll x;
cin>>x;
if (x!=-1){
a2.g[x].push_back(i);
a2.g[i].push_back(x);
}
else r2 = i;
}
// cout<<"OK"<<endl;
a1.dfs(r1,r1);
a2.dfs(r2,r2);
// cout<<"WAT"<<endl;
// return 0;
vector <ll> c = a1.choose;
c.resize(k);
sort(c.begin(),c.end(),[](ll x,ll y){return a2.in[x] < a2.in[y];});
for (auto x:c)cout<<x<<' ';
cout<<'\n';
for (ll j = 0;j + 1 < sz(c);j ++)cout<<"? "<<c[j]<<' '<<c[j+1]<<'\n';
cout<<'!'<<endl;
for (ll j = 0;j + 1 < sz(c);j ++){
ll u1,v1,u2,v2;
cin>>u1>>v1>>u2>>v2;
a1.add(c[j],c[j+1],u1,v1);
a2.add(c[j],c[j+1],u2,v2);
}
// return 0;
a1.solve(),a2.solve();
// return 0;
vector <pll> ans;
while (t--){
ll x,y;
cin>>x>>y;
ans.push_back(MP(a1.query(x,y),a2.query(x,y)));
// cout<<a1.query(x,y)<<' '<<a2.query(x,y)<<'\n';
}
for (auto x:ans)cout<<x.fi<<' '<<x.se<<'\n';
cout.flush();
}
Details
Tip: Click on the bar to expand more detailed information
Subtask #1:
score: 0
Wrong Answer
Test #1:
score: 10
Accepted
time: 757ms
memory: 201032kb
input:
500000 64682 64681 100000 46115 470589 209303 2979 473162 343535 79503 299539 404621 102085 237721 279170 392890 165201 441593 456314 218991 358478 86614 410800 159785 169761 95368 285837 297549 370283 378974 26449 444381 39320 149913 404523 144109 174828 263837 49847 468694 478535 152644 216598 301...
output:
422989 414496 290928 388223 160563 301045 470257 259625 222733 231286 345214 169817 435263 277447 386014 210139 455433 225855 264772 199736 355788 288506 233893 146148 454958 267562 498596 183745 352665 151125 266374 43142 9414 204593 212097 311775 25324 300764 6643 94847 396968 428563 311355 255767...
result:
ok good job!
Test #2:
score: 10
Accepted
time: 774ms
memory: 203520kb
input:
500000 90967 90966 100000 122547 312039 290084 118442 352297 175176 294396 496975 127062 90539 132654 408480 493670 419897 53432 141795 264165 60368 473480 5634 253119 64236 85346 422987 28583 262389 111931 271291 13577 415079 132797 256502 76402 265607 11274 289667 398726 32021 302401 410650 369760...
output:
3090 193269 3028 186608 498475 64618 82114 231445 7541 329983 134623 235591 70401 18906 403427 280451 146897 355174 160090 144279 193430 332022 488244 228900 80781 84465 218682 27818 6035 368489 155673 440755 443926 241570 193717 143661 374105 56616 323329 95909 337798 20531 236329 28564 437244 4969...
result:
ok good job!
Test #3:
score: 0
Wrong Answer
time: 591ms
memory: 182936kb
input:
500000 68287 68286 100000 273928 229768 65518 144983 311611 494773 489379 439644 467893 456131 430188 247387 485565 272285 474827 476962 338340 365804 344570 390867 390170 456217 43185 447057 385874 305750 107742 230530 259907 252254 280920 16831 45761 185191 117450 55891 175190 255615 35904 14855 2...
output:
242387 146602 106115 32426 8390 3821 314935 201979 171459 413397 469146 119187 74265 167902 479051 182695 260054 235048 135315 280891 13044 240704 209304 211564 188960 481631 289686 273785 175837 385737 204887 288861 330677 315423 120726 278204 129910 396267 322633 472675 325914 329277 67326 391455 ...
result:
wrong answer wrong answer on the first integer of query #1: read 12243 but expected 14620
Subtask #2:
score: 0
Wrong Answer
Test #13:
score: 25
Accepted
time: 874ms
memory: 203824kb
input:
500000 88721 177440 100000 30974 23891 211201 125199 180489 387190 218020 498838 230147 307989 484136 257785 353027 304420 311738 169842 334090 486070 126212 328609 174959 368840 238722 418092 488389 226349 427271 457322 332454 12958 197530 264474 355717 482774 221286 282148 216441 266659 213750 628...
output:
299348 225578 286701 388703 273711 466172 478011 490391 462013 126494 92677 182472 13812 107732 303666 361862 256289 91025 389690 156797 268792 434419 208299 409874 319842 64913 385537 136511 498213 255392 208598 45196 97386 482069 290480 370649 225780 380585 84550 485237 301855 494683 414740 107270...
result:
ok good job!
Test #14:
score: 25
Accepted
time: 775ms
memory: 199956kb
input:
500000 50267 100532 100000 68723 142685 445548 215087 478634 201362 177405 373123 227456 161487 276716 452818 230715 466238 250886 368974 77152 493722 129115 154402 319190 170867 27898 338290 170229 428001 62611 19188 164329 435154 128 358453 137653 430592 160391 407392 125236 320137 27945 393135 17...
output:
180276 246334 495583 402629 160081 135829 437502 411046 380530 139431 365266 373213 304147 83868 82333 429663 60973 379653 172399 163454 32708 375362 151036 335442 305087 243402 252686 172089 94334 222818 22129 288097 54119 315516 305714 257805 486465 169334 213035 447566 446068 161042 183900 97933 ...
result:
ok good job!
Test #15:
score: 0
Wrong Answer
time: 643ms
memory: 182992kb
input:
500000 67604 135206 100000 269046 235003 144646 314602 323547 204450 484229 26672 78499 602 110738 117079 125630 408912 188317 256853 71590 365703 370008 194267 342683 400737 369194 127912 96314 269751 219125 431887 398790 200053 279314 365797 187505 75025 48264 492515 387506 13267 80948 378737 1106...
output:
410957 102640 57040 447297 448703 24334 254889 77275 293399 345300 471259 482786 199969 188760 419540 436680 217376 127367 321519 11476 40719 5121 430565 22593 274317 171984 466284 283845 312405 479173 72277 352329 333338 297543 48229 286138 161512 309021 279771 261137 13943 32976 177635 383998 2832...
result:
wrong answer wrong answer on the second integer of query #1: read 346071 but expected 29667
Subtask #3:
score: 0
Wrong Answer
Test #25:
score: 19
Accepted
time: 552ms
memory: 194012kb
input:
500000 200 199 40000 76296 130139 291501 292412 139543 433345 372726 451574 18315 465578 324564 477223 237354 81532 65170 465332 342130 9670 193303 193680 129668 149532 268907 89969 398275 356210 324593 433492 482232 466692 135343 433758 102545 287283 432859 351864 305769 489532 101532 450535 295762...
output:
12225 329473 124294 112780 478338 445039 249189 32330 65783 179054 497476 452979 319006 30813 48206 427935 466790 486377 109196 200837 164218 45188 487722 282259 229713 367076 188057 187010 232559 151913 348461 116954 20242 322713 185020 157495 443679 326708 325415 391214 266949 457474 3735 299220 2...
result:
ok good job!
Test #26:
score: 19
Accepted
time: 551ms
memory: 193916kb
input:
500000 200 199 40000 83785 150667 304961 267635 97760 385201 77226 6522 352645 72592 427133 30755 100574 359648 403948 394809 425453 115868 11287 351385 494434 245106 58157 395180 326236 277135 359592 13569 76251 45366 172378 122783 216597 466130 284420 342613 471698 380682 92490 79264 241049 54038 ...
output:
455890 309275 63656 335800 292806 9763 489623 63346 86191 446791 183068 362736 197911 107095 211424 101597 145440 202553 8696 425553 151090 60540 369501 412878 462364 222 148686 133609 158102 107714 270626 112101 244973 133381 421561 462192 28928 193698 101629 183699 205161 304190 364442 409432 4207...
result:
ok good job!
Test #27:
score: 0
Wrong Answer
time: 460ms
memory: 175016kb
input:
500000 200 199 40000 94863 498513 460682 411416 360517 309831 253717 325019 496632 255803 130770 289206 181204 74729 481723 293737 94126 307214 342974 448321 17084 433126 387809 279606 251781 65795 125269 129465 433572 219622 11806 179248 367117 84640 114067 122590 4140 116015 77759 392439 408930 10...
output:
169886 390279 368972 148339 120867 255654 425227 466391 364651 290210 320026 437371 497635 41842 386320 65024 14065 233867 357207 420188 469081 258948 114753 140059 323833 246889 80317 274110 254320 97822 456153 178210 110359 256453 402585 495349 408878 101879 228544 89744 24166 280870 36284 297613 ...
result:
wrong answer wrong answer on the first integer of query #1: read 1413 but expected 2911
Subtask #4:
score: 0
Runtime Error
Test #37:
score: 0
Runtime Error
input:
1000000 1000 999 100000 678746 439069 32542 85937 936926 284219 461661 203235 533462 940676 230275 621140 780674 254931 562355 229273 201341 493976 358955 963527 880412 91220 474599 160086 698841 591551 718276 844558 39859 765917 34722 401724 219774 443004 682244 545401 968419 968020 354030 411187 1...
output:
result:
Subtask #5:
score: 0
Skipped
Dependency #4:
0%