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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 ✓152ms33236kbC++141.7kb2024-10-27 19:39:252024-10-27 19:39:30

Judging History

你现在查看的是最新测评结果

  • [2024-10-27 19:39:30]
  • 评测
  • 测评结果:AC
  • 用时:152ms
  • 内存:33236kb
  • [2024-10-27 19:39:25]
  • 提交

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