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 |
---|---|---|---|---|---|---|---|---|---|
#683244 | #9525. Welcome to Join the Online Meeting! | end# | AC ✓ | 152ms | 33236kb | C++14 | 1.7kb | 2024-10-27 19:39:25 | 2024-10-27 19:39:30 |
Judging History
answer
#include<iostream>
#include<algorithm>
#include<cstring>
#include<vector>
#include<queue>
using namespace std;
const int N = 200010;
const int M = 1000010;
int n, m, k;
bool a[N];
bool is_find[N];
int e[M], ne[M], h[N], idx;
int root = 1;
int number = 0;
vector<int> q[N];
int hh = 1, ans = 0;
void add(int a, int b)
{
e[idx] = b, ne[idx] = h[a], h[a] = idx++;
}
void dfs(int u,int father)
{
is_find[u] = true;
number++;
if (a[u])return;
for (int i = h[u]; i != -1; i = ne[i])
{
int j = e[i];
if (j == father)continue;
if (is_find[j])continue;
q[u].push_back(j);
dfs(j, u);
}
}
void dfs2(int u, int father)
{
is_find[u] = true;
if (a[u])return;
if (q[u].size())
{
cout << u << " ";
cout << q[u].size() << " ";
for (int i = 0; i < q[u].size(); i++)
cout << q[u][i] << " ";
cout << endl;
for (int i = h[u]; i != -1; i = ne[i])
{
int j = e[i];
if (j == father)continue;
if (is_find[j])continue;
dfs2(j, u);
}
}
}
int main()
{
ios::sync_with_stdio(0);
cin.tie(0), cout.tie(0);
cin >> n >> m >> k;
for (int i = 1; i <= k; i++)
{
int x;
cin >> x;
a[x] = true;
}
memset(h, -1, sizeof h);
for (int i = 0; i < m; i++)
{
int u, v;
cin >> u >> v;
add(u, v);
add(v, u);
}
while (a[root])root++;
if (root > n)
{
cout << "No" << endl;
return 0;
}
dfs(root, 0);
if (number < n)
{
cout << "No" << endl;
return 0;
}
cout << "Yes" << endl;
for (int i = 1; i <= n; i++)
{
if (q[i].size())ans++;
}
cout << ans << endl;
memset(is_find, 0, sizeof is_find);
dfs2(root, 0);
return 0;
}
/*
4 5 2
3 4
1 2
1 3
2 3
3 4
2 4
4 5 3
2 4 3
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?
详细
Test #1:
score: 100
Accepted
time: 3ms
memory: 15192kb
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: 15276kb
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: 12484kb
input:
4 6 2 3 4 1 3 1 4 2 3 2 4 1 2 3 4
output:
Yes 2 1 1 2 2 2 4 3
result:
ok ok
Test #4:
score: 0
Accepted
time: 2ms
memory: 14896kb
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: 96ms
memory: 29152kb
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 186222 1 122914 122914 1 18533 18533 1 66240 66240 1 143831 143831 1 52965 52965 1 45501 45501 1 36293 36293 1 95051 95051 1 114707 114707 1 90623 90623 1 10911 10911 1 1942 1942 1 41382 41382 1 188734 188734 1 107093 107093 1 154956 1549...
result:
ok ok
Test #6:
score: 0
Accepted
time: 128ms
memory: 32124kb
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 65736 1 10794 10794 1 50503 50503 1 194943 194943 1 42759 42759 1 35447 35447 1 55027 55027 1 175222 175222 1 103541 103541 1 104528 104528 1 21620 21620 1 141581 141581 1 74591 74591 1 43436 43436 1 42438 42438 1 84592 84592 1 29722 2972...
result:
ok ok
Test #7:
score: 0
Accepted
time: 112ms
memory: 30840kb
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 182503 1 106861 106861 1 147686 147686 1 106747 106747 1 182217 182217 1 124210 124210 1 72832 72832 1 107526 107526 1 187820 187820 1 28484 28484 1 57839 57839 1 78991 78991 1 150102 150102 1 184106 184106 1 64483 64483 1 135180 135180 1 4...
result:
ok ok
Test #8:
score: 0
Accepted
time: 30ms
memory: 28608kb
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: 19ms
memory: 15912kb
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: 34ms
memory: 16180kb
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: 33ms
memory: 16356kb
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: 33ms
memory: 17132kb
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: 48ms
memory: 17148kb
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 234 1 5 335 155 671 709 729 729 1 987 987 10 142 356 385 530 25 850 797 304 654 485 485 2 354 53 53 9 327 609 482 312 342 705 249 739 496 496 18 105 318 700 946 224 262 79 374 93 740 372 166 567 734 434 5 610 906 906 7 180 291 597 32 415 611 991 991 2 664 328 328 9 630 997 390 243 823 36...
result:
ok ok
Test #14:
score: 0
Accepted
time: 45ms
memory: 15700kb
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 899 1 1 271 271 1 330 330 1 48 48 1 122 122 1 673 673 1 963 963 1 233 233 1 600 600 1 624 624 1 486 486 1 532 532 2 170 952 952 1 182 182 1 28 28 1 893 893 1 464 464 1 42 42 1 488 488 2 240 72 72 3 671 288 634 634 1 55 55 1 82 82 1 188 188 1 13 13 1 53 53 1 555 555 1 27...
result:
ok ok
Test #15:
score: 0
Accepted
time: 38ms
memory: 16916kb
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: 42ms
memory: 17000kb
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: 83ms
memory: 18072kb
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 8682 1 1 8009 8009 2 8236 612 612 1 8415 8415 1 7122 7122 2 6837 6764 6764 1 1776 1776 1 9129 9129 1 7526 7526 1 7973 7973 1 7051 7051 1 5822 5822 1 7774 7774 3 5831 4135 9499 9499 1 3858 3858 1 234 234 1 8112 8112 1 8681 8681 1 4480 4480 1 1619 1619 1 7521 7521 1 8478 8478 ...
result:
ok ok
Test #18:
score: 0
Accepted
time: 92ms
memory: 18152kb
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 9904 1 1 4952 4952 1 5711 5711 1 4624 4624 1 4025 4025 1 8263 8263 1 6046 6046 1 9193 9193 1 5692 5692 1 5160 5160 1 4613 4613 1 7159 7159 1 918 918 1 456 456 1 7829 7829 1 2600 2600 1 9282 9282 1 7055 7055 1 10000 10000 1 5897 5897 1 8601 8601 1 8157 8157 1 8732 8732 1 106...
result:
ok ok
Test #19:
score: 0
Accepted
time: 93ms
memory: 19136kb
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 19290 1 1 4189 4189 1 17628 17628 1 15688 15688 1 2758 2758 1 13690 13690 1 2273 2273 1 1236 1236 1 19510 19510 1 3702 3702 2 4259 11226 11226 1 12109 12109 1 10552 10552 1 3864 3864 1 7466 7466 1 16498 16498 1 9308 9308 1 19777 19777 1 3735 3735 1 16764 16764 1 17685 17685 1...
result:
ok ok
Test #20:
score: 0
Accepted
time: 92ms
memory: 19228kb
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 19163 1 1 516 516 1 9851 9851 1 1726 1726 1 18920 18920 1 3788 3788 1 6270 6270 1 14556 14556 1 3828 3828 1 15456 15456 1 6065 6065 1 10760 10760 1 16331 16331 1 19188 19188 1 1471 1471 1 9129 9129 1 16609 16609 1 17767 17767 1 15286 15286 1 5778 5778 2 10841 8378 8378 1 3759...
result:
ok ok
Test #21:
score: 0
Accepted
time: 69ms
memory: 26436kb
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: 137ms
memory: 26492kb
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 90398 1 1 66116 66116 1 71258 71258 1 39732 39732 1 71087 71087 1 52414 52414 1 62877 62877 1 446 446 1 9554 9554 1 15409 15409 1 96024 96024 1 37002 37002 1 92776 92776 1 5279 5279 1 86595 86595 1 26020 26020 1 44593 44593 1 81978 81978 1 28504 28504 1 56263 56263 1 41549 41...
result:
ok ok
Test #23:
score: 0
Accepted
time: 136ms
memory: 26556kb
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 90413 1 1 49346 49346 1 9474 9474 1 44049 44049 1 49398 49398 1 22214 22214 1 69179 69179 1 53721 53721 1 92335 92335 1 96060 96060 1 43652 43652 1 54564 54564 1 85962 85962 1 84125 84125 1 44838 44838 1 25418 25418 1 4236 4236 1 23902 23902 1 9582 9582 1 90517 90517 1 95008 ...
result:
ok ok
Test #24:
score: 0
Accepted
time: 127ms
memory: 26592kb
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 90355 1 1 2884 2884 1 22005 22005 1 62509 62509 1 94134 94134 1 57058 57058 1 19943 19943 1 56448 56448 1 19237 19237 1 15941 15941 1 80931 80931 1 40307 40307 1 53259 53259 1 18472 18472 1 2489 2489 1 15620 15620 1 45372 45372 1 6219 6219 1 32946 32946 1 45963 45963 1 74896 ...
result:
ok ok
Test #25:
score: 0
Accepted
time: 38ms
memory: 20712kb
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: 29ms
memory: 19492kb
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: 76ms
memory: 33236kb
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: 92ms
memory: 33200kb
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: 152ms
memory: 33212kb
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 164624 1 1 192998 192998 1 40739 40739 1 94446 94446 1 127192 127192 1 86740 86740 1 176972 176972 1 172112 172112 1 29740 29740 1 18277 18277 1 105747 105747 1 18292 18292 1 190084 190084 1 89540 89540 1 89934 89934 1 25905 25905 1 109890 109890 1 157420 157420 1 62455 62455 1...
result:
ok ok
Test #30:
score: 0
Accepted
time: 112ms
memory: 21320kb
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 12 1 14 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 29 1 32 32 2 34 33 34 1 37 37 1 41 41 2 49 48 49 5 65 66 63 67 64 65 1 83 83 1 101 101 1 120 120 2 147 148 147 2 173 172 148 1 174 174 1 19...
result:
ok ok
Test #31:
score: 0
Accepted
time: 0ms
memory: 15016kb
input:
2 1 1 1 1 2
output:
Yes 1 2 1 1
result:
ok ok
Test #32:
score: 0
Accepted
time: 2ms
memory: 12400kb
input:
2 1 0 1 2
output:
Yes 1 1 1 2
result:
ok ok
Extra Test:
score: 0
Extra Test Passed