QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#785562 | #9525. Welcome to Join the Online Meeting! | SZH# | AC ✓ | 64ms | 24392kb | C++14 | 1.7kb | 2024-11-26 18:15:39 | 2024-11-26 18:15:40 |
Judging History
answer
#include<bits/stdc++.h>
#define pa pair<int,int>
#define INF 0x3f3f3f3f
#define inf 0x3f
#define fi first
#define se second
#define mp make_pair
#define ll long long
#define ull unsigned long long
#define pb push_back
using namespace std;
inline ll read()
{
ll f=1,sum=0;char c=getchar();
while (!isdigit(c)) {if (c=='-') f=-1;c=getchar();}
while (isdigit(c)) {sum=sum*10+c-'0';c=getchar();}
return sum*f;
}
const int MAXN=200100;
const int MAXM=500010;
struct edge{
int next,to;
}e[MAXM*2];
int head[MAXN],cnt;
void addedge(int u,int v){
e[++cnt].next=head[u];
e[cnt].to=v;
head[u]=cnt;
}
int busy[MAXN];
int vis[MAXN],ind[MAXN];
vector <int> ans[MAXN];
int main()
{
int n=read(),m=read(),k=read();
for (int i=1;i<=k;i++)
{
int x=read();
busy[x]=1;
}
for (int i=1;i<=m;i++)
{
int u=read(),v=read();
if (!busy[u]) addedge(u,v);
if (!busy[v]) addedge(v,u);
}
int x=0;
for (int i=1;i<=n && !x;i++)
if (!busy[i]) x=i;
if (!x)
{
cout<<"No\n";
return 0;
}
memset(vis,0,sizeof(vis));
queue <int> q;
q.push(x);
vis[x]=1;
vector <int> bfsq;
while (!q.empty())
{
int u=q.front();
q.pop();
bfsq.push_back(u);
for (int i=head[u];i;i=e[i].next)
{
int v=e[i].to;
if (vis[v]) continue;
ans[u].push_back(v);
vis[v]=1;
q.push(v);
}
}
bool flag=true;
for (int i=1;i<=n;i++) flag&=vis[i];
if (!flag)
{
cout<<"No\n";
return 0;
}
cout<<"Yes\n";
vector <int> need_print;
for (auto i:bfsq) if (ans[i].size()) need_print.push_back(i);
cout<<need_print.size()<<'\n';
for (auto id:need_print)
{
cout<<id<<' '<<ans[id].size()<<' ';
for (auto v:ans[id]) cout<<v<<' ';
cout<<'\n';
}
return 0;
}
这程序好像有点Bug,我给组数据试试?
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 3ms
memory: 13396kb
input:
4 5 2 3 4 1 2 1 3 2 3 3 4 2 4
output:
Yes 2 1 2 3 2 2 1 4
result:
ok ok
Test #2:
score: 0
Accepted
time: 0ms
memory: 11732kb
input:
4 5 3 2 4 3 1 2 1 3 2 3 3 4 2 4
output:
No
result:
ok ok
Test #3:
score: 0
Accepted
time: 2ms
memory: 11568kb
input:
4 6 2 3 4 1 3 1 4 2 3 2 4 1 2 3 4
output:
Yes 1 1 3 2 4 3
result:
ok ok
Test #4:
score: 0
Accepted
time: 2ms
memory: 11708kb
input:
6 6 0 1 2 2 3 3 1 4 5 5 6 6 4
output:
No
result:
ok ok
Test #5:
score: 0
Accepted
time: 45ms
memory: 24392kb
input:
200000 199999 2 142330 49798 49798 116486 116486 64386 64386 192793 192793 61212 61212 138489 138489 83788 83788 89573 89573 8596 8596 156548 156548 41800 41800 14478 14478 27908 27908 82806 82806 9353 9353 160166 160166 92308 92308 36265 36265 126943 126943 190578 190578 191148 191148 177381 177381...
output:
Yes 199998 1 2 178679 95113 178679 1 186222 95113 1 27292 186222 1 122914 27292 1 93394 122914 1 18533 93394 1 30051 18533 1 66240 30051 1 174891 66240 1 143831 174891 1 165580 143831 1 52965 165580 1 94294 52965 1 45501 94294 1 123410 45501 1 36293 123410 1 55130 36293 1 95051 551...
result:
ok ok
Test #6:
score: 0
Accepted
time: 53ms
memory: 23240kb
input:
199999 199998 1 136702 159826 166341 166341 59559 59559 169672 169672 102084 102084 136269 136269 57057 57057 59116 59116 119963 119963 85663 85663 33942 33942 84604 84604 189395 189395 154906 154906 22175 22175 144902 144902 198523 198523 35993 35993 35690 35690 47504 47504 104458 104458 68253 6825...
output:
Yes 199997 1 2 191801 172082 191801 1 65736 172082 1 188910 65736 1 10794 188910 1 131169 10794 1 50503 131169 1 48799 50503 1 194943 48799 1 20862 194943 1 42759 20862 1 189938 42759 1 35447 189938 1 46325 35447 1 55027 46325 1 48691 55027 1 175222 48691 1 45299 175222 1 103541 45...
result:
ok ok
Test #7:
score: 0
Accepted
time: 58ms
memory: 22816kb
input:
199998 199997 0 67665 130538 130538 101337 101337 73749 73749 138128 138128 1274 1274 108069 108069 50961 50961 7039 7039 109946 109946 170551 170551 193330 193330 113590 113590 92775 92775 2146 2146 43591 43591 125033 125033 75583 75583 173991 173991 46820 46820 3986 3986 163272 163272 91657 91657...
output:
Yes 199996 1 2 102870 5661 102870 1 182503 5661 1 114962 182503 1 106861 114962 1 36222 106861 1 147686 36222 1 92959 147686 1 106747 92959 1 66511 106747 1 182217 66511 1 81220 182217 1 124210 81220 1 182229 124210 1 72832 182229 1 7906 72832 1 107526 7906 1 81750 107526 1 187820 ...
result:
ok ok
Test #8:
score: 0
Accepted
time: 19ms
memory: 20268kb
input:
199997 199996 1 158877 35837 79489 79489 72932 72932 14238 14238 73007 73007 66909 66909 49015 49015 129581 129581 138449 138449 94774 94774 189625 189625 23578 23578 31043 31043 146625 146625 161587 161587 136966 136966 184859 184859 27587 27587 155616 155616 72392 72392 195320 195320 75551 75551 1...
output:
No
result:
ok ok
Test #9:
score: 0
Accepted
time: 13ms
memory: 14028kb
input:
200000 199999 1 29111 29111 80079 29111 131587 29111 197066 29111 125194 29111 156736 50697 29111 29111 74382 113595 29111 29111 26046 29111 172868 178564 29111 174875 29111 93471 29111 88216 29111 29111 147893 29111 145746 29111 34038 146500 29111 67862 29111 29111 19222 29111 121535 29111 49102 29...
output:
No
result:
ok ok
Test #10:
score: 0
Accepted
time: 21ms
memory: 18080kb
input:
199999 199998 2 52512 104330 130511 66864 139434 66864 92884 66864 66864 185580 184115 66864 137395 66864 66864 43463 118395 66864 111697 66864 66864 133237 66864 112507 66864 140264 66864 10 66864 151082 155779 66864 107988 66864 148839 66864 66864 40909 172685 66864 66864 189374 180054 66864 49 66...
output:
Yes 2 1 1 66864 66864 199997 152191 114634 139293 174586 166708 148083 113473 51973 40621 24729 76417 61418 8724 198149 133889 48404 16570 71892 189896 124248 97342 29065 127677 122933 54921 187274 29825 42364 38058 57622 184269 136390 73229 94147 195417 121369 139089 119860 191448 131894 139973 58...
result:
ok ok
Test #11:
score: 0
Accepted
time: 17ms
memory: 17808kb
input:
199998 199997 0 77056 67665 130538 77056 77056 101337 73749 77056 77056 138128 1274 77056 77056 108069 50961 77056 77056 7039 77056 109946 77056 170551 193330 77056 113590 77056 77056 92775 2146 77056 43591 77056 77056 125033 75583 77056 173991 77056 46820 77056 77056 3986 77056 163272 91657 77056 ...
output:
Yes 2 1 1 77056 77056 199996 108040 162420 130135 168898 4125 67434 132013 36554 114001 171315 14656 37474 46087 66480 161076 103822 131635 148656 136590 125073 111510 124527 62120 126154 40223 33351 140740 48401 168088 47 53313 116117 151667 51110 55915 195842 151790 175746 63508 8461 184584 11119...
result:
ok ok
Test #12:
score: 0
Accepted
time: 15ms
memory: 13292kb
input:
1000 499500 999 458 720 932 821 847 788 447 593 430 896 257 238 380 924 968 30 389 306 278 824 83 342 329 513 476 313 714 348 602 105 758 777 663 1000 20 756 546 256 123 340 69 244 772 625 390 557 911 272 496 127 409 436 845 574 958 921 24 17 770 630 851 147 178 976 77 181 230 723 974 345 501 683 24...
output:
Yes 1 987 999 422 67 813 291 807 123 296 89 197 428 396 13 499 402 102 796 607 254 889 483 777 761 956 233 490 913 609 147 149 163 789 574 648 753 783 107 379 129 427 184 627 313 852 409 470 856 504 774 756 90 403 532 20 672 932 924 634 495 876 649 232 457 942 885 890 16 307 337 693 599 850 755 863 ...
result:
ok ok
Test #13:
score: 0
Accepted
time: 21ms
memory: 15128kb
input:
1000 499000 765 622 257 281 601 593 967 704 173 609 700 782 592 356 595 431 307 933 886 213 478 8 832 877 606 335 253 420 631 345 179 961 437 238 641 513 997 192 483 152 951 580 331 401 122 155 814 228 633 372 918 346 464 3 992 416 953 650 668 971 899 76 575 880 85 194 541 26 348 93 815 554 64 850 5...
output:
Yes 1 1 999 335 155 671 709 729 722 151 199 363 557 629 502 114 227 139 291 366 200 683 492 661 771 213 654 405 749 380 796 656 994 919 288 317 976 273 164 843 146 165 215 791 30 646 150 427 187 299 387 649 867 437 329 614 724 728 206 128 246 860 948 974 140 189 936 531 736 997 598 659 421 777 584 6...
result:
ok ok
Test #14:
score: 0
Accepted
time: 19ms
memory: 14416kb
input:
999 300000 98 544 367 966 146 474 309 291 482 953 116 340 59 765 566 227 176 371 672 170 739 120 931 23 858 153 884 258 842 763 405 104 957 596 978 732 515 497 269 174 551 653 690 755 808 288 574 17 356 500 665 827 172 987 240 154 824 220 430 722 950 534 400 413 908 671 12 427 818 187 335 572 644 52...
output:
Yes 8 1 615 271 131 971 763 817 465 652 574 93 558 168 847 573 161 804 846 196 133 554 595 268 22 559 702 536 646 220 508 863 118 533 718 585 60 292 298 339 345 358 309 907 404 433 497 142 458 216 169 548 957 252 723 690 15 683 486 221 362 657 48 127 16 88 577 205 36 273 755 199 713 337 515 260 409 ...
result:
ok ok
Test #15:
score: 0
Accepted
time: 14ms
memory: 10440kb
input:
10000 500000 10000 1905 4872 6021 8458 3220 7251 6356 3194 996 2320 298 7850 3567 2244 4361 7462 8058 9852 3057 6409 2288 9712 8533 5380 7131 970 2261 134 1179 1665 7329 442 8996 8203 7168 5946 7893 8282 9474 2445 1762 4900 101 6631 4588 7670 7716 7010 6113 5654 5308 3451 130 3205 2959 4898 374 6178...
output:
No
result:
ok ok
Test #16:
score: 0
Accepted
time: 14ms
memory: 11680kb
input:
10000 500000 9998 5272 7519 3021 7043 2522 2940 9960 3860 7595 3760 8035 2085 572 234 8292 3636 9619 6749 884 6669 8536 570 9353 2803 160 6085 5838 2812 7764 8722 2431 8854 2183 2032 7731 5404 5516 1574 4864 1431 8527 5506 1012 5713 8665 26 976 6010 4888 5975 6993 3187 7227 8438 6812 5903 1738 6467 ...
output:
No
result:
ok ok
Test #17:
score: 0
Accepted
time: 35ms
memory: 19196kb
input:
10000 500000 1234 7096 8517 9305 874 7758 730 2653 6237 2494 4290 2280 892 9081 2308 6418 3258 1690 103 9850 6778 9724 1914 1561 1361 3776 160 1892 1394 7981 3050 6013 5452 8769 7341 3259 6011 8672 4500 1930 8758 5103 4509 2782 1354 1583 8663 1088 2156 3254 7150 3824 4768 8230 7533 3277 8910 8135 19...
output:
Yes 511 1 90 8009 9914 7211 6455 832 1942 2596 9257 233 2921 8137 8311 5661 2960 2720 8002 7766 3219 9304 6387 8445 5473 9604 872 9767 2579 9067 3365 4539 5381 1119 5089 1171 7460 7057 9043 2907 1398 9801 3872 8643 5352 1120 7082 9371 1944 2994 3536 6400 849 9782 9916 8751 4731 4989 5976 2032 7737 1...
result:
ok ok
Test #18:
score: 0
Accepted
time: 45ms
memory: 17364kb
input:
10000 500000 0 6605 3715 1237 3040 3617 2124 4550 1766 8159 4808 7027 9779 7053 1803 3973 6790 8233 2873 7636 6894 6821 9714 8280 8440 261 6160 1279 3627 5816 9131 8167 1332 6763 3029 9605 4045 921 9926 6547 4760 3618 7832 5961 6497 1255 5646 5567 621 5732 2860 88 3501 3866 6046 7188 6203 3337 2873...
output:
Yes 514 1 87 4952 8616 8474 301 4876 8029 1225 2299 4534 8530 9392 2010 9306 6811 668 1786 813 6921 3690 3928 7718 1747 6142 9668 2631 129 5123 9959 4995 4348 5265 4018 1658 4969 6877 3114 2478 1188 9948 5348 2090 2911 8073 7438 8936 6931 270 6613 8566 178 2349 5167 2025 9433 2947 550 5919 7755 1655...
result:
ok ok
Test #19:
score: 0
Accepted
time: 46ms
memory: 19444kb
input:
20000 499999 321 13495 16729 10971 3389 7920 17768 11943 12054 6426 13331 6453 15959 6842 12610 18437 12930 4597 7386 8506 52 17373 2492 18849 19694 8432 12552 8663 4836 5370 3125 4323 15529 5916 14378 13756 15147 19826 7961 3188 4919 14256 5230 16288 13867 6039 13451 12861 9057 12645 19486 16719 19...
output:
Yes 1767 1 43 4189 15052 17187 10008 4956 876 16852 17399 2931 4273 9109 9492 4186 11174 16847 8967 17857 14953 18868 9706 1765 13730 3456 9628 10436 8838 14938 10509 7718 16277 16474 500 14575 7992 5938 5469 17949 9285 14743 1847 19173 19205 6778 4189 53 17628 2301 10006 14157 5861 10583 10240 192...
result:
ok ok
Test #20:
score: 0
Accepted
time: 45ms
memory: 19372kb
input:
20000 499998 456 17380 3548 17148 12088 15694 2886 15042 15060 4903 3288 13810 5360 7487 15472 1934 6496 19753 7795 9485 16913 17980 18738 18003 3795 5186 18128 15284 3276 16833 13161 6707 8941 947 5088 4974 13222 1790 14903 14837 4315 17583 12119 15871 6961 11561 3674 18427 2207 1556 19736 719 2326...
output:
Yes 1789 1 47 516 2555 4732 9057 5411 18687 14361 17354 15074 7273 1737 12903 16987 19150 192 19645 4456 11642 7893 18747 1957 1020 14168 16054 4248 9876 17591 7561 10505 15721 10422 10989 11853 12862 3098 19643 15479 2360 12691 19948 5610 13824 13850 10073 4434 3954 12128 516 52 9851 16996 4335 55...
result:
ok ok
Test #21:
score: 0
Accepted
time: 39ms
memory: 20440kb
input:
100000 500000 1235 3510 14575 57589 88714 29299 62839 6733 25039 17686 8112 24858 274 16916 83976 25181 57773 49758 65223 33663 47471 12200 8551 57927 21092 67375 77093 76589 91355 94075 17071 50791 43800 72672 54280 19504 106 10971 87577 40091 88380 81937 27327 24188 78489 92382 43581 8875 22402 41...
output:
No
result:
ok ok
Test #22:
score: 0
Accepted
time: 42ms
memory: 20732kb
input:
100000 500000 9 34008 13155 90342 28233 23089 86546 14071 6854 11360 3498 65486 65603 70184 14269 18649 79366 11163 66926 49216 4445 76420 50121 20493 2808 43301 18218 44910 92999 97448 13760 37138 15100 36649 34074 1879 72027 68411 54611 87760 1896 60316 43650 8286 34285 74403 21309 96104 49344 941...
output:
Yes 28668 1 16 66116 41733 34295 18785 16201 89926 49781 916 29798 95940 87768 68964 79038 24857 68436 16265 66116 11 71258 87396 74284 90423 95889 91525 32703 89293 31427 62060 63050 41733 9 32680 5614 90195 67734 96377 16907 85101 20058 57160 34295 5 90981 5317 45703 78410 45035 18785 9 59097 ...
result:
ok ok
Test #23:
score: 0
Accepted
time: 46ms
memory: 20744kb
input:
100000 500000 1 75076 9583 32552 72566 77581 74823 25463 58197 78380 62002 94563 99622 60434 39479 68180 1722 38894 43269 85989 33777 78513 5464 79304 57968 37134 88958 60066 61043 23394 50002 93317 59516 46962 55978 3705 2504 341 70466 21789 42193 45686 1370 18780 91444 2274 93546 66571 97443 53551...
output:
Yes 28826 1 9 49346 5016 76765 91223 87360 56506 34949 44766 79657 49346 8 9474 82531 7133 12549 67843 38247 35012 63387 5016 12 99201 51976 70104 27597 16921 47505 40127 38759 579 61015 34722 70522 76765 6 6568 33930 75993 1112 11725 89081 91223 12 21693 41375 25626 76094 44909 66302 59008 5608...
result:
ok ok
Test #24:
score: 0
Accepted
time: 39ms
memory: 19808kb
input:
100000 500000 0 39862 49976 22596 40406 37185 98022 80733 93561 81387 94842 25064 61254 42694 16911 22623 87861 89266 37654 59510 12230 43457 79569 73883 19406 63275 92754 22177 11799 5763 44974 1570 83476 79123 73330 45165 77314 63415 32676 70388 8398 22032 77785 63620 61574 23429 41486 30923 1236...
output:
Yes 28702 1 5 2884 6935 27351 82701 63233 2884 7 22005 45252 71798 65018 2231 3443 44572 6935 7 74425 98250 39488 37462 77838 17990 59909 27351 11 45745 95688 5514 5053 8278 83510 78742 88441 82695 21929 67092 82701 9 43048 92802 53000 95624 24262 33471 71588 17516 91359 63233 10 99855 50654 20...
result:
ok ok
Test #25:
score: 0
Accepted
time: 25ms
memory: 20044kb
input:
199999 200000 10 162044 184301 102211 174303 129412 46215 153004 13679 113247 194319 100393 176945 52810 193834 159859 44467 119931 61763 196292 30856 21297 175055 20174 1882 11250 184866 74000 1054 74272 134956 41299 186242 162575 63218 119189 12678 29884 5001 148164 16567 24612 169902 77735 135002...
output:
No
result:
ok ok
Test #26:
score: 0
Accepted
time: 25ms
memory: 17708kb
input:
200000 199999 0 142790 145621 180161 104270 112230 88214 154000 63048 188285 141046 185739 50230 142683 197737 141276 49672 41219 95859 175530 171250 171226 174408 151297 88982 28928 71368 199034 63185 116370 106685 192890 167797 132366 79091 78160 89965 177169 151554 172583 127365 9032 60583 78786...
output:
No
result:
ok ok
Test #27:
score: 0
Accepted
time: 51ms
memory: 22636kb
input:
200000 500000 245 193722 185527 109052 75916 93935 24076 79627 20964 180786 120016 132778 186582 144529 16308 58727 114586 130490 34200 113593 7386 151039 39324 175706 195617 169880 139107 160903 183556 167931 124336 92216 181943 41472 98648 191217 191760 19769 86540 4125 65866 133876 106754 96372 1...
output:
No
result:
ok ok
Test #28:
score: 0
Accepted
time: 43ms
memory: 22816kb
input:
200000 500000 14 142703 65403 129451 151977 165363 20230 132897 87039 9024 158327 31353 194121 16577 146056 139648 187616 8050 35431 127655 35285 195736 80740 3874 174224 168938 136840 97592 176911 12210 58008 85816 66096 61709 179153 69540 1567 86595 14951 182066 29930 183615 37773 166329 61767 167...
output:
No
result:
ok ok
Test #29:
score: 0
Accepted
time: 64ms
memory: 23580kb
input:
200000 500000 1 5880 85775 146428 142622 151159 88421 138441 169300 66421 147351 32187 62008 74476 82579 109015 176101 15964 50525 172923 142682 150232 178015 197099 29910 154380 124900 65984 825 137825 194984 139256 31396 65802 141485 14608 126721 85235 193397 167129 98424 54611 63857 8244 68507 68...
output:
Yes 87561 1 4 192998 198016 23882 190782 192998 6 40739 187586 58145 78985 117848 67687 198016 2 142699 165322 23882 2 47015 179076 190782 6 26131 94184 131391 89835 46898 15819 40739 4 94446 112731 164176 98380 187586 6 171432 71566 113767 72290 42451 163925 58145 9 121225 5211 171337 11304 ...
result:
ok ok
Test #30:
score: 0
Accepted
time: 45ms
memory: 19784kb
input:
199999 199998 73589 144387 49530 75323 115971 116495 141238 92902 186288 75011 21274 196 62128 161581 112516 16226 166382 73692 120539 170346 127146 153896 57832 23870 56030 110186 132465 101619 681 13908 5901 194116 151154 160650 78720 87497 131676 94642 65227 153151 67720 61825 132140 114363 76085...
output:
Yes 126410 2 3 4 1 3 4 1 5 5 4 9 6 7 8 9 1 12 7 1 10 8 1 11 12 1 14 10 1 13 14 1 15 15 2 16 17 17 2 18 19 19 2 21 20 21 2 22 23 22 1 24 23 2 26 25 26 2 29 28 25 1 27 29 1 32 28 2 30 31 32 2 34 33 34 1 37 33 2 36 35 37 1 41 36 2 39 40 35 1 38 41 2 49 48 39 3 46 44 45 40 1 4...
result:
ok ok
Test #31:
score: 0
Accepted
time: 3ms
memory: 13056kb
input:
2 1 1 1 1 2
output:
Yes 1 2 1 1
result:
ok ok
Test #32:
score: 0
Accepted
time: 2ms
memory: 10076kb
input:
2 1 0 1 2
output:
Yes 1 1 1 2
result:
ok ok
Extra Test:
score: 0
Extra Test Passed