QOJ.ac
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 |
---|---|---|---|---|---|---|---|---|---|
#699095 | #9525. Welcome to Join the Online Meeting! | jr_zlw | AC ✓ | 119ms | 97880kb | C++17 | 1.5kb | 2024-11-02 01:08:34 | 2024-11-02 01:08:35 |
Judging History
answer
#include<bits/stdc++.h>
#define rep(a,b,c) for(int c(a);c<=(b);++c)
#define drep(a,b,c) for(int c(a);c>=(b);--c)
using namespace std;
inline int read()
{
int res=0;char ch=getchar();while(ch<'0'||ch>'9')ch=getchar();
while(ch<='9'&&ch>='0')res=res*10+(ch^48),ch=getchar();return res;
}
const int N=1e6+10;
int n,m,fa[N];
bool vis[N],a[N];
int que[N],H,TT,t;
vector<int> G[N],T[N],Q[N];
inline void dfs(int u)
{
if(!Q[u].size())return;
printf("%d %d ",u,int(Q[u].size()));
for(int v:Q[u])printf("%d ",v);puts("");
for(int v:Q[u])dfs(v);
}
inline void Solve()
{
n=read();m=read();int aa=read();
while(aa--)a[read()]=true;
rep(1,m,i)
{
int u=read(),v=read();
if(a[u])swap(u,v);
if(a[u])
{
;
}
else if(a[v])
{
G[v].push_back(u);
}
else
{
T[u].push_back(v);
T[v].push_back(u);
}
}
int rt=0;
rep(1,n,i)if(!a[i]){rt=i;break;}
if(!rt)
{
puts("No");
return;
}
que[H=TT=0]=rt;vis[rt]=true;
while(H<=TT)
{
int u=que[H++];
for(int v:T[u])if(!vis[v])
{
que[++TT]=v;
vis[v]=true;
fa[v]=u;
}
}
rep(1,n,u)if(!a[u]&&!vis[u])
{
puts("No");return;
}
rep(1,n,u)if(a[u])
{
if(!G[u].size())
{
puts("No");return;
}
fa[u]=(*(G[u].begin()));
}
// rep(1,n,i)printf("%d ",fa[i]);puts("");
// return;
rep(1,n,i)if(fa[i])Q[fa[i]].push_back(i);
rep(1,n,i)if(Q[i].size())++t;
puts("Yes");
printf("%d\n",t);dfs(rt);
}
int main()
{
int T=1;
while(T--)Solve();
return 0;
}
/*
4 5 2
3 4
1 2
1 3
2 3
3 4
2 4
*/
这程序好像有点Bug,我给组数据试试?
詳細信息
Test #1:
score: 100
Accepted
time: 12ms
memory: 79708kb
input:
4 5 2 3 4 1 2 1 3 2 3 3 4 2 4
output:
Yes 2 1 2 2 3 2 1 4
result:
ok ok
Test #2:
score: 0
Accepted
time: 7ms
memory: 78884kb
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: 8ms
memory: 79864kb
input:
4 6 2 3 4 1 3 1 4 2 3 2 4 1 2 3 4
output:
Yes 1 1 3 2 3 4
result:
ok ok
Test #4:
score: 0
Accepted
time: 12ms
memory: 75796kb
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: 89ms
memory: 97880kb
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 95113 178679 95113 1 27292 27292 1 93394 93394 1 30051 30051 1 174891 174891 1 165580 165580 1 94294 94294 1 123410 123410 1 55130 55130 1 154872 154872 1 166138 166138 1 30681 30681 1 51031 51031 1 89161 89161 1 187764 187764 1 14291 14291 1 66035 66035 1 83781 8378...
result:
ok ok
Test #6:
score: 0
Accepted
time: 103ms
memory: 94308kb
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 172082 191801 172082 1 188910 188910 1 131169 131169 1 48799 48799 1 20862 20862 1 189938 189938 1 46325 46325 1 48691 48691 1 45299 45299 1 166683 166683 1 155350 155350 1 88290 88290 1 140962 140962 1 106716 106716 1 180949 180949 1 116565 116565 1 41562 41562 1 528...
result:
ok ok
Test #7:
score: 0
Accepted
time: 90ms
memory: 95696kb
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 5661 102870 5661 1 114962 114962 1 36222 36222 1 92959 92959 1 66511 66511 1 81220 81220 1 182229 182229 1 7906 7906 1 81750 81750 1 75132 75132 1 188940 188940 1 144653 144653 1 76023 76023 1 120474 120474 1 155713 155713 1 152446 152446 1 26414 26414 1 110040 11004...
result:
ok ok
Test #8:
score: 0
Accepted
time: 28ms
memory: 88756kb
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: 11ms
memory: 79124kb
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: 36ms
memory: 87164kb
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 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94...
result:
ok ok
Test #11:
score: 0
Accepted
time: 46ms
memory: 88484kb
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 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94...
result:
ok ok
Test #12:
score: 0
Accepted
time: 21ms
memory: 79676kb
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 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 9...
result:
ok ok
Test #13:
score: 0
Accepted
time: 25ms
memory: 80292kb
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 227 1 239 2 7 15 20 22 28 31 37 44 46 51 53 60 67 71 74 75 82 86 94 101 115 119 121 124 127 132 133 135 138 143 144 156 161 169 172 174 183 189 195 200 201 210 211 217 223 227 231 236 241 244 248 256 258 260 264 266 268 271 288 294 297 300 302 303 306 325 326 328 333 337 339 343 347 349 352 359 ...
result:
ok ok
Test #14:
score: 0
Accepted
time: 22ms
memory: 84052kb
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 100 1 558 2 3 7 8 9 10 13 14 15 16 18 19 20 22 24 25 26 28 29 30 32 33 35 36 37 39 42 43 44 48 49 51 52 54 55 58 60 61 62 64 65 66 68 69 71 75 80 81 82 83 84 85 86 87 88 91 92 93 95 96 97 99 100 102 106 107 108 109 110 111 115 117 118 119 122 123 124 125 126 127 129 131 132 133 137 138 144 145 1...
result:
ok ok
Test #15:
score: 0
Accepted
time: 21ms
memory: 76940kb
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: 25ms
memory: 76936kb
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: 31ms
memory: 85868kb
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 1581 1 76 2 233 314 638 832 849 932 1119 1120 1141 1159 1171 1387 1398 1589 1601 1944 2032 2574 2579 2596 2720 2907 2921 2960 2994 3219 3431 3536 3547 3581 3872 4539 4691 4731 4989 5089 5352 5381 5547 5604 5661 5665 5976 6387 6400 6440 6455 6609 7057 7082 7184 7211 7460 7737 7766 7801 8002 8009 ...
result:
ok ok
Test #18:
score: 0
Accepted
time: 36ms
memory: 82116kb
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 515 1 87 78 129 144 178 270 301 523 550 668 790 813 1188 1225 1422 1441 1593 1620 1655 1658 1747 1786 2010 2025 2071 2090 2299 2349 2478 2631 2911 2947 3114 3354 3356 3397 3673 3690 3711 3798 3928 3931 4018 4348 4487 4534 4572 4625 4876 4952 4969 4995 5123 5167 5265 5348 5919 6142 6613 6811 6871...
result:
ok ok
Test #19:
score: 0
Accepted
time: 44ms
memory: 85528kb
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 2082 1 41 500 876 1765 1847 2931 3456 4186 4189 4273 4956 5469 5938 6778 7718 7992 8838 8967 9109 9285 9492 9628 9706 10008 10436 10509 11174 13730 14575 14743 14938 14953 15052 16277 16847 17187 17399 17857 17949 18868 19173 19205 500 37 93 987 1958 2032 2281 4184 4543 4801 4892 5116 6410 7332...
result:
ok ok
Test #20:
score: 0
Accepted
time: 46ms
memory: 85452kb
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 2180 1 47 192 516 1020 1737 1957 2360 2555 3098 3954 4248 4434 4456 4732 5411 5610 7273 7561 7893 9057 9876 10073 10422 10505 10989 11642 11853 12128 12691 12862 12903 13824 13850 14168 14361 15074 15479 15721 16054 16987 17354 17591 18687 18747 19150 19643 19645 19948 192 53 368 416 632 658 77...
result:
ok ok
Test #21:
score: 0
Accepted
time: 64ms
memory: 87712kb
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: 84ms
memory: 88956kb
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 28752 1 16 916 16201 16265 18785 24857 29798 34295 41733 49781 66116 68436 68964 79038 87768 89926 95940 916 7 2065 49223 61521 84760 91201 92760 92958 2065 6 7985 28456 42593 57131 89525 97016 7985 11 10732 16708 19312 23771 54263 69071 78862 87713 90496 90513 99205 10732 3 22540 54485 8463...
result:
ok ok
Test #23:
score: 0
Accepted
time: 81ms
memory: 87908kb
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 28745 1 9 5016 34949 44766 49346 56506 76765 79657 87360 91223 5016 12 579 16921 27597 34722 38759 40127 47505 51976 61015 70104 70522 99201 579 8 5455 5711 28307 32424 42955 47493 81596 93387 5455 9 5195 10115 15270 45197 45241 74564 75447 83172 99441 5195 4 12615 16090 49526 96505 10115 4...
result:
ok ok
Test #24:
score: 0
Accepted
time: 76ms
memory: 86936kb
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 28668 1 5 2884 6935 27351 63233 82701 2884 7 2231 3443 22005 44572 45252 65018 71798 2231 5 3695 10475 71350 73671 96679 3695 9 8006 21311 31647 33814 40823 43403 47197 68966 97273 8006 6 2592 5865 8991 32970 39648 48238 5865 1 80827 39648 1 21007 48238 1 77367 21311 4 603 7262 32982 536...
result:
ok ok
Test #25:
score: 0
Accepted
time: 39ms
memory: 88804kb
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: 48ms
memory: 86604kb
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: 89ms
memory: 88948kb
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: 83ms
memory: 90356kb
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: 119ms
memory: 91276kb
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 87373 1 4 23882 190782 192998 198016 23882 2 47015 179076 47015 5 9324 23492 39428 69059 199643 9324 6 25157 50594 55083 56181 152263 191295 25157 5 36350 100733 130304 173887 195320 36350 3 51348 122572 134714 51348 8 371 18195 21927 27353 37544 72660 100681 114761 371 3 8082 81111 81891...
result:
ok ok
Test #30:
score: 0
Accepted
time: 78ms
memory: 89244kb
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 1 3 4 4 1 5 5 4 6 7 8 9 7 1 10 10 1 13 8 1 11 9 1 12 12 1 14 14 1 15 15 2 16 17 17 2 18 19 19 2 20 21 21 2 22 23 22 1 24 23 2 25 26 25 1 27 26 2 28 29 28 2 30 31 29 1 32 32 2 33 34 33 2 35 36 35 1 38 38 2 42 43 42 3 50 51 52 51 1 68 52 3 69 70 71 71 1 87 87 ...
result:
ok ok
Test #31:
score: 0
Accepted
time: 7ms
memory: 80240kb
input:
2 1 1 1 1 2
output:
Yes 1 2 1 1
result:
ok ok
Test #32:
score: 0
Accepted
time: 8ms
memory: 76932kb
input:
2 1 0 1 2
output:
Yes 1 1 1 2
result:
ok ok
Extra Test:
score: 0
Extra Test Passed