QOJ.ac

QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#246870#5545. Contingency PlanZhangYiDeTL 117ms18236kbC++177.2kb2023-11-11 11:20:132023-11-11 11:20:14

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 0ms
memory: 3824kb

input:

7
1 2
3 7
2 4
2 5
1 3
3 6

output:

2 3
7 6
4 3
5 3
1 6
4 1

result:

ok AC

Test #2:

score: 0
Accepted
time: 0ms
memory: 3556kb

input:

3
1 2
2 3

output:

-1

result:

ok AC

Test #3:

score: 0
Accepted
time: 0ms
memory: 3484kb

input:

2
2 1

output:

-1

result:

ok AC

Test #4:

score: 0
Accepted
time: 0ms
memory: 3468kb

input:

5
2 1
2 3
2 4
4 5

output:

1 4
3 4
2 5
5 1

result:

ok AC

Test #5:

score: 0
Accepted
time: 0ms
memory: 3628kb

input:

5
1 4
3 4
4 5
2 5

output:

1 2
3 2
4 2
5 1

result:

ok AC

Test #6:

score: 0
Accepted
time: 0ms
memory: 3624kb

input:

5
5 2
1 2
4 2
3 4

output:

5 3
1 3
2 3
4 1

result:

ok AC

Test #7:

score: 0
Accepted
time: 22ms
memory: 6156kb

input:

20000
1 2
1 3
4 1
5 1
6 1
7 1
1 8
1 9
1 10
1 11
12 1
1 13
14 1
1 15
1 16
17 1
1 18
1 19
20 1
21 1
22 1
1 23
24 1
1 25
26 1
1 27
28 1
29 1
30 1
1 31
1 32
1 33
1 34
1 35
36 1
1 37
1 38
1 39
40 1
41 1
1 42
1 43
44 1
1 45
46 1
1 47
48 1
49 1
1 50
1 51
52 1
53 1
54 1
1 55
56 1
57 1
58 1
1 59
60 1
61 1
1 ...

output:

2 20000
3 20000
4 20000
5 20000
6 20000
7 20000
8 20000
9 20000
10 20000
11 20000
12 20000
13 20000
14 20000
15 20000
16 20000
17 20000
18 20000
19 20000
20 20000
21 20000
22 20000
23 20000
24 20000
25 20000
26 20000
27 20000
28 20000
29 20000
30 20000
31 20000
32 20000
33 20000
34 20000
35 20000
36...

result:

ok AC

Test #8:

score: 0
Accepted
time: 19ms
memory: 6096kb

input:

20000
7662 1
9205 1
5971 1
1 9886
1 18853
14108 1
998 1
1 14958
7100 1
1 2670
1 18493
13838 1
4644 1
2139 1
1 18540
1 14081
1 16836
1 9357
245 1
242 1
1 13472
1 1471
3792 1
1 17875
13976 1
1 15085
1 17283
15014 1
17477 1
11578 1
18441 1
1 14367
3018 1
1 7186
1 4939
2470 1
2993 1
6175 1
1 19886
1 125...

output:

7662 17029
9205 17029
5971 17029
9886 17029
18853 17029
14108 17029
998 17029
14958 17029
7100 17029
2670 17029
18493 17029
13838 17029
4644 17029
2139 17029
18540 17029
14081 17029
16836 17029
9357 17029
245 17029
242 17029
13472 17029
1471 17029
3792 17029
17875 17029
13976 17029
15085 17029
17283...

result:

ok AC

Test #9:

score: 0
Accepted
time: 20ms
memory: 6116kb

input:

20000
8854 1
15635 1
8088 1
1 12138
12367 1
1 15051
6392 1
15564 1
17334 1
1 10164
8704 1
1 13795
1 10292
12108 1
1 50
4 1
1 18364
13341 1
19203 1
1 3017
1 5133
3499 1
19202 1
1 10304
12975 1
1 17220
1 1716
1 4158
1 16763
1 301
1 16645
8690 1
1 10064
16977 1
1 19618
1 5471
1 8763
3997 1
1 3283
11332...

output:

8854 17288
15635 17288
8088 17288
12138 17288
12367 17288
15051 17288
6392 17288
15564 17288
17334 17288
10164 17288
8704 17288
13795 17288
10292 17288
12108 17288
50 17288
4 17288
18364 17288
13341 17288
19203 17288
3017 17288
5133 17288
3499 17288
19202 17288
10304 17288
12975 17288
17220 17288
17...

result:

ok AC

Test #10:

score: 0
Accepted
time: 12ms
memory: 6172kb

input:

20000
1 2
2 3
4 2
2 5
2 6
2 7
2 8
9 2
10 2
2 11
12 2
2 13
14 2
2 15
2 16
17 2
2 18
19 2
20 2
2 21
22 2
2 23
24 2
2 25
26 2
2 27
2 28
29 2
30 2
2 31
2 32
2 33
2 34
35 2
36 2
37 2
38 2
2 39
40 2
2 41
42 2
43 2
2 44
45 2
46 2
2 47
2 48
2 49
50 2
51 2
2 52
2 53
54 2
55 2
56 2
57 2
2 58
2 59
60 2
61 2
2 ...

output:

1 20000
3 20000
4 20000
5 20000
6 20000
7 20000
8 20000
9 20000
10 20000
11 20000
12 20000
13 20000
14 20000
15 20000
16 20000
17 20000
18 20000
19 20000
20 20000
21 20000
22 20000
23 20000
24 20000
25 20000
26 20000
27 20000
28 20000
29 20000
30 20000
31 20000
32 20000
33 20000
34 20000
35 20000
36...

result:

ok AC

Test #11:

score: 0
Accepted
time: 16ms
memory: 6188kb

input:

20000
1 13291
13291 19998
3314 13291
13291 3339
13291 10237
13244 13291
13291 3392
13291 4459
13291 17335
13291 10356
6124 13291
13291 4470
12896 13291
13291 12094
3309 13291
13319 13291
13291 15658
13291 2305
13291 13710
13291 16520
13291 16234
6697 13291
13291 6686
9187 13291
13291 43
13291 2764
1...

output:

1 1064
19998 1064
3314 1064
3339 1064
10237 1064
13244 1064
3392 1064
4459 1064
17335 1064
10356 1064
6124 1064
4470 1064
12896 1064
12094 1064
3309 1064
13319 1064
15658 1064
2305 1064
13710 1064
16520 1064
16234 1064
6697 1064
6686 1064
9187 1064
43 1064
2764 1064
9061 1064
8113 1064
8449 1064
330...

result:

ok AC

Test #12:

score: 0
Accepted
time: 16ms
memory: 6124kb

input:

20000
4030 5565
1206 5565
5565 8947
4887 5565
14605 5565
5565 2947
5565 9038
5565 5326
5565 9021
11087 5565
5565 19562
895 5565
14653 5565
5565 10803
5565 9750
5565 16331
4689 5565
14307 5565
11631 5565
5565 13244
10554 5565
8112 5565
5565 9394
5565 5945
15279 5565
5565 15512
1334 5565
5565 6025
556...

output:

4030 14227
1206 14227
8947 14227
4887 14227
14605 14227
2947 14227
9038 14227
5326 14227
9021 14227
11087 14227
19562 14227
895 14227
14653 14227
10803 14227
9750 14227
16331 14227
4689 14227
14307 14227
11631 14227
13244 14227
10554 14227
8112 14227
9394 14227
5945 14227
15279 14227
15512 14227
133...

result:

ok AC

Test #13:

score: 0
Accepted
time: 94ms
memory: 18112kb

input:

100000
1 2
3 1
1 4
5 1
1 6
1 7
1 8
1 9
10 1
1 11
1 12
13 1
1 14
1 15
16 1
17 1
18 1
1 19
1 20
1 21
1 22
1 23
24 1
25 1
26 1
27 1
28 1
29 1
30 1
31 1
1 32
33 1
34 1
35 1
36 1
37 1
1 38
1 39
1 40
1 41
1 42
43 1
1 44
45 1
1 46
1 47
48 1
49 1
1 50
51 1
52 1
53 1
54 1
1 55
56 1
57 1
58 1
59 1
60 1
1 61
1...

output:

2 100000
3 100000
4 100000
5 100000
6 100000
7 100000
8 100000
9 100000
10 100000
11 100000
12 100000
13 100000
14 100000
15 100000
16 100000
17 100000
18 100000
19 100000
20 100000
21 100000
22 100000
23 100000
24 100000
25 100000
26 100000
27 100000
28 100000
29 100000
30 100000
31 100000
32 10000...

result:

ok AC

Test #14:

score: 0
Accepted
time: 0ms
memory: 3756kb

input:

5
2 1
3 2
4 3
5 4

output:

1 5
2 5
3 5
4 1

result:

ok AC

Test #15:

score: 0
Accepted
time: 117ms
memory: 18236kb

input:

100000
21871 1
13678 1
27196 1
70437 1
1 35891
1 43010
28018 1
1 64489
61157 1
1 35572
1 41613
1 73049
93865 1
83507 1
1 92127
86278 1
1 15004
1 44154
2005 1
1 94210
41410 1
1 5886
69836 1
1 24120
1 80802
1 9940
66220 1
66549 1
1 20103
1 5
1 33021
35482 1
76185 1
34850 1
1 55173
1 72488
1 76286
1 99...

output:

21871 63055
13678 63055
27196 63055
70437 63055
35891 63055
43010 63055
28018 63055
64489 63055
61157 63055
35572 63055
41613 63055
73049 63055
93865 63055
83507 63055
92127 63055
86278 63055
15004 63055
44154 63055
2005 63055
94210 63055
41410 63055
5886 63055
69836 63055
24120 63055
80802 63055
99...

result:

ok AC

Test #16:

score: 0
Accepted
time: 108ms
memory: 18168kb

input:

100000
1 12976
28108 1
87682 1
79359 1
16128 1
1 90652
1 55874
27276 1
1 66899
1 10296
1 37870
1 78978
26221 1
28589 1
1 46430
32252 1
22407 1
68230 1
64944 1
1 53457
31023 1
1 57101
1 82578
1 33273
69683 1
64357 1
1 32517
1 45623
1 29497
41082 1
1 43731
1 28620
1 64304
1 23462
1 81982
1 91877
1 309...

output:

12976 78172
28108 78172
87682 78172
79359 78172
16128 78172
90652 78172
55874 78172
27276 78172
66899 78172
10296 78172
37870 78172
78978 78172
26221 78172
28589 78172
46430 78172
32252 78172
22407 78172
68230 78172
64944 78172
53457 78172
31023 78172
57101 78172
82578 78172
33273 78172
69683 78172
...

result:

ok AC

Test #17:

score: 0
Accepted
time: 80ms
memory: 18104kb

input:

100000
1 2
2 3
4 2
5 2
2 6
7 2
2 8
2 9
2 10
2 11
2 12
2 13
2 14
2 15
16 2
2 17
18 2
19 2
20 2
21 2
2 22
23 2
24 2
2 25
2 26
27 2
28 2
29 2
30 2
2 31
32 2
2 33
34 2
35 2
2 36
2 37
38 2
2 39
40 2
2 41
42 2
43 2
44 2
45 2
2 46
47 2
2 48
49 2
50 2
2 51
2 52
2 53
2 54
2 55
56 2
2 57
58 2
59 2
60 2
61 2
6...

output:

1 99999
3 99999
4 99999
5 99999
6 99999
7 99999
8 99999
9 99999
10 99999
11 99999
12 99999
13 99999
14 99999
15 99999
16 99999
17 99999
18 99999
19 99999
20 99999
21 99999
22 99999
23 99999
24 99999
25 99999
26 99999
27 99999
28 99999
29 99999
30 99999
31 99999
32 99999
33 99999
34 99999
35 99999
36...

result:

ok AC

Test #18:

score: 0
Accepted
time: 115ms
memory: 18008kb

input:

100000
15924 1
13919 15924
86413 15924
15924 78418
36904 15924
15924 60478
15924 78563
15924 23855
63531 15924
15574 15924
73713 15924
62532 15924
15924 19461
15924 80750
15924 57012
15924 27046
55780 15924
69619 15924
58970 15924
65824 15924
15924 3195
26782 15924
71411 15924
84915 15924
95347 1592...

output:

1 26907
13919 26907
86413 26907
78418 26907
36904 26907
60478 26907
78563 26907
23855 26907
63531 26907
15574 26907
73713 26907
62532 26907
19461 26907
80750 26907
57012 26907
27046 26907
55780 26907
69619 26907
58970 26907
65824 26907
3195 26907
26782 26907
71411 26907
84915 26907
95347 26907
53739...

result:

ok AC

Test #19:

score: 0
Accepted
time: 103ms
memory: 18096kb

input:

100000
40659 47250
51514 40659
40659 83613
16333 40659
25291 40659
40659 61711
40659 37621
40659 66805
40659 59550
67744 40659
40659 46644
40659 21771
40659 98164
40659 6655
75053 40659
90431 40659
40659 58023
48769 40659
11506 40659
19125 40659
52852 40659
98702 40659
53360 40659
40659 3999
66767 4...

output:

47250 86919
51514 86919
83613 86919
16333 86919
25291 86919
61711 86919
37621 86919
66805 86919
59550 86919
67744 86919
46644 86919
21771 86919
98164 86919
6655 86919
75053 86919
90431 86919
58023 86919
48769 86919
11506 86919
19125 86919
52852 86919
98702 86919
53360 86919
3999 86919
66767 86919
82...

result:

ok AC

Test #20:

score: 0
Accepted
time: 24ms
memory: 6136kb

input:

20000
13211 1
1 10767
13211 16998
13211 495
10767 7635
10767 6994
10669 16998
1369 16998
495 4745
722 495
7635 251
3552 7635
7267 6994
6994 1772
10669 18929
10669 9328
3076 1369
1369 14212
4745 284
4745 9599
722 6137
722 10565
15137 251
5349 251
16431 3552
3552 15719
7267 10917
598 7267
19533 1772
1...

output:

1 10376
10767 10376
13211 10376
495 10376
7635 10376
6994 10376
10669 10376
16998 10376
4745 10376
722 10376
251 10376
3552 10376
7267 10376
1772 10376
18929 10376
9328 10376
3076 10376
1369 10376
284 10376
9599 10376
6137 10376
10565 10376
15137 10376
5349 10376
16431 10376
15719 10376
10917 10376
...

result:

ok AC

Test #21:

score: 0
Accepted
time: 28ms
memory: 6172kb

input:

20000
11262 14400
16805 2790
19084 11979
15259 5949
9916 12236
2445 1637
1905 15141
9540 16655
12812 16186
19052 1523
6643 1443
13738 10091
9218 1337
16617 16436
17295 16466
1171 1217
19150 5280
2830 8076
16135 7234
11460 213
8101 341
5438 6331
5029 14871
10725 2090
5998 12241
8902 3420
4340 7265
18...

output:

14400 15050
16805 15050
11979 15050
5949 15050
9916 15050
2445 15050
15141 15050
16655 15050
16186 15050
1523 15050
1443 15050
10091 15050
9218 15050
16617 15050
16466 15050
1217 15050
19150 15050
2830 15050
7234 15050
11460 15050
8101 15050
6331 15050
14871 15050
10725 15050
12241 15050
8902 15050
...

result:

ok AC

Test #22:

score: 0
Accepted
time: 16ms
memory: 6092kb

input:

20000
19272 1
19272 7240
6952 7240
6952 10594
12564 10594
12564 13132
14483 13132
14483 1891
9772 1891
16614 9772
14519 16614
12050 14519
4039 12050
4039 9679
8408 4039
12050 6797
17990 6797
6797 17659
14519 14985
16415 14985
1735 16415
16415 18821
14985 9402
9402 18947
9402 5386
17560 16614
17560 1...

output:

19272 9518
7240 9518
6952 9518
10594 9518
12564 9518
13132 9518
14483 9518
1891 9518
9772 9518
16614 9518
14519 9518
12050 9518
4039 9518
9679 9518
8408 9518
6797 9518
17990 9518
17659 9518
14985 9518
16415 9518
1735 9518
18821 9518
9402 9518
18947 9518
5386 9518
17560 9518
1094 9518
7537 9518
19700...

result:

ok AC

Test #23:

score: 0
Accepted
time: 23ms
memory: 6244kb

input:

20000
4410 1
7210 1
1 2389
4410 18377
4410 4507
7905 4410
7210 14849
12441 7210
7210 9005
17807 2389
2389 6619
2389 6604
6913 18377
5811 18377
7249 18377
4507 1582
4507 8857
4507 17635
10077 7905
7905 4687
8607 7905
14849 16870
14849 3298
14849 2376
12441 9009
12441 10729
19879 12441
9005 19790
7715...

output:

4410 2201
1 2201
2389 2201
18377 2201
4507 2201
7905 2201
14849 2201
7210 2201
9005 2201
17807 2201
6619 2201
6604 2201
6913 2201
5811 2201
7249 2201
1582 2201
8857 2201
17635 2201
10077 2201
4687 2201
8607 2201
16870 2201
3298 2201
2376 2201
9009 2201
12441 2201
19879 2201
19790 2201
7715 2201
4016...

result:

ok AC

Test #24:

score: 0
Accepted
time: 27ms
memory: 6252kb

input:

20000
7223 19213
12395 18674
16451 12980
18029 7848
16056 11920
6906 11077
3923 10662
9192 4837
17604 11135
16462 2457
18842 9770
15130 10251
19601 6770
7954 12079
7559 642
15051 17509
1146 18583
18196 17621
4980 8041
19973 15310
16834 11112
3176 8010
957 12737
4072 830
3194 1873
11400 3394
6914 806...

output:

19213 16305
12395 16305
12980 16305
7848 16305
11920 16305
6906 16305
3923 16305
4837 16305
11135 16305
2457 16305
9770 16305
10251 16305
6770 16305
12079 16305
7559 16305
15051 16305
1146 16305
17621 16305
8041 16305
19973 16305
11112 16305
3176 16305
957 16305
830 16305
3194 16305
11400 16305
6914...

result:

ok AC

Test #25:

score: 0
Accepted
time: 0ms
memory: 3516kb

input:

5
2 1
3 1
4 1
1 5

output:

-1

result:

ok AC

Test #26:

score: 0
Accepted
time: 21ms
memory: 6092kb

input:

20000
1 4794
4794 19823
8249 19823
8249 19672
16549 19672
13478 16549
3608 13478
3608 14623
14623 10303
19353 14623
14623 7999
3608 14367
14367 17910
14367 8488
16947 14367
3608 1121
1121 1836
13048 1121
17393 1121
11488 13478
11488 17346
8954 17346
17346 4922
17346 13440
11488 2278
16202 2278
593 2...

output:

4794 13429
19823 13429
8249 13429
19672 13429
16549 13429
13478 13429
3608 13429
14623 13429
10303 13429
19353 13429
7999 13429
14367 13429
17910 13429
8488 13429
16947 13429
1121 13429
1836 13429
13048 13429
17393 13429
11488 13429
17346 13429
8954 13429
4922 13429
13440 13429
2278 13429
16202 1342...

result:

ok AC

Test #27:

score: 0
Accepted
time: 22ms
memory: 6156kb

input:

20000
1 17253
5390 1
1 10221
1 16259
8902 1
10509 1
1 16551
1 13314
1 12754
1 11707
1 7781
1 2105
1 18132
1 12907
1 5609
1 15234
1 18609
1 13919
1 13882
1 15621
1 1997
1 14002
1 18056
7498 1
13534 1
1530 1
1 14773
1 2001
1 10679
1 13745
6140 1
19975 1
14198 1
1 7536
5623 1
1 6120
1 6954
730 1
1 1601...

output:

1 6357
5390 6357
10221 6357
16259 6357
8902 6357
10509 6357
16551 6357
13314 6357
12754 6357
11707 6357
7781 6357
2105 6357
18132 6357
12907 6357
5609 6357
15234 6357
18609 6357
13919 6357
13882 6357
15621 6357
1997 6357
14002 6357
18056 6357
7498 6357
13534 6357
1530 6357
14773 6357
2001 6357
10679...

result:

ok AC

Test #28:

score: 0
Accepted
time: 16ms
memory: 6104kb

input:

20000
5445 4016
925 12966
8179 19342
5779 1
9123 4530
5079 8720
8754 5478
17667 13748
7203 13819
10489 7645
8537 14929
4717 5427
239 4564
17407 14318
6756 7348
4638 17915
19455 15109
3853 19342
15246 17470
8228 16612
7726 13819
1 16617
16607 6208
6228 12081
1615 14545
11897 16624
7653 14499
7273 195...

output:

5445 3062
12966 3062
8179 3062
5779 3062
9123 3062
5079 3062
5478 3062
13748 3062
7203 3062
7645 3062
14929 3062
4717 3062
4564 3062
14318 3062
7348 3062
17915 3062
15109 3062
3853 3062
15246 3062
8228 3062
7726 3062
16617 3062
16607 3062
6228 3062
1615 3062
11897 3062
14499 3062
19530 3062
15437 30...

result:

ok AC

Test #29:

score: 0
Accepted
time: 21ms
memory: 6120kb

input:

20000
1 10558
10558 7298
7298 3082
17807 7298
793 7298
11663 7298
12412 7298
10699 7298
7298 1146
2462 7298
7298 12577
11701 7298
7298 7622
3831 7298
19955 7298
3001 7298
7298 18329
7298 851
7298 16782
7298 17396
7298 15015
12771 7298
7298 10926
4736 7298
9088 7298
4867 7298
16066 7298
7298 2148
729...

output:

10558 19849
7298 19849
3082 19849
17807 19849
793 19849
11663 19849
12412 19849
10699 19849
1146 19849
2462 19849
12577 19849
11701 19849
7622 19849
3831 19849
19955 19849
3001 19849
18329 19849
851 19849
16782 19849
17396 19849
15015 19849
12771 19849
10926 19849
4736 19849
9088 19849
4867 19849
16...

result:

ok AC

Test #30:

score: 0
Accepted
time: 24ms
memory: 6100kb

input:

20000
1 11767
10226 11767
6246 10226
6576 6246
458 6576
458 5997
16052 5997
16052 10900
4370 10900
4370 17480
17480 11379
4859 11379
14663 4859
18363 14663
1454 18363
18490 1454
18490 17760
17760 19850
19832 19850
4252 19832
5482 4252
2802 5482
17779 2802
17779 8601
10844 8601
10844 17372
1230 17372...

output:

1 4129
11767 4129
10226 4129
6246 4129
6576 4129
458 4129
5997 4129
16052 4129
10900 4129
4370 4129
17480 4129
11379 4129
4859 4129
14663 4129
18363 4129
1454 4129
18490 4129
17760 4129
19850 4129
19832 4129
4252 4129
5482 4129
2802 4129
17779 4129
8601 4129
10844 4129
17372 4129
1230 4129
13019 412...

result:

ok AC

Test #31:

score: 0
Accepted
time: 24ms
memory: 6172kb

input:

20000
16653 18166
1123 17313
12716 14313
11207 7401
2794 831
480 7420
4462 1161
575 456
15192 3052
12389 7101
15729 18976
18772 19492
18805 2052
866 10412
8160 3697
13319 15062
19241 11526
11876 3502
613 17770
15035 14829
6518 16531
11665 19122
15722 18062
19841 14843
5758 3123
1633 14519
3637 13277...

output:

18166 18123
17313 18123
14313 18123
11207 18123
831 18123
7420 18123
1161 18123
575 18123
3052 18123
7101 18123
18976 18123
18772 18123
18805 18123
10412 18123
8160 18123
15062 18123
19241 18123
11876 18123
613 18123
14829 18123
16531 18123
11665 18123
15722 18123
19841 18123
5758 18123
14519 18123
...

result:

ok AC

Test #32:

score: -100
Time Limit Exceeded

input:

20000
5613 1
1 999
1 16709
1 2491
9549 1
19706 1
1 1022
1 3884
1 1916
6627 1
1 1600
10265 1
1 19100
19766 1
1 7450
1 14375
5986 1
10295 1
8625 1
11810 1
1 15542
1 5745
3506 1
12842 1
1 11860
1 16317
1 6553
12476 1
1 6031
8445 1
6462 1
1 1601
1 3014
14100 1
1 6771
1 2360
1 15402
4549 1
6116 1
1 17848...

output:


result: