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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
#601014#7675. SurveillancehuiAC ✓858ms241064kbC++202.0kb2024-09-29 20:35:542024-09-29 20:35:55

详细

Test #1:

score: 100
Accepted
time: 0ms
memory: 50584kb

input:

100 7
1 50
50 70
70 90
90 40
20 60
60 80
80 20

output:

3

result:

ok single line: '3'

Test #2:

score: 0
Accepted
time: 0ms
memory: 50932kb

input:

8 2
8 3
5 7

output:

impossible

result:

ok single line: 'impossible'

Test #3:

score: 0
Accepted
time: 0ms
memory: 50588kb

input:

8 2
8 4
5 7

output:

2

result:

ok single line: '2'

Test #4:

score: 0
Accepted
time: 0ms
memory: 50704kb

input:

12 4
1 6
5 8
5 9
10 12

output:

3

result:

ok single line: '3'

Test #5:

score: 0
Accepted
time: 0ms
memory: 50704kb

input:

12 4
1 6
5 9
5 8
10 12

output:

3

result:

ok single line: '3'

Test #6:

score: 0
Accepted
time: 0ms
memory: 50940kb

input:

12 3
1 9
4 12
5 10

output:

2

result:

ok single line: '2'

Test #7:

score: 0
Accepted
time: 0ms
memory: 50864kb

input:

12 3
1 9
5 10
4 12

output:

2

result:

ok single line: '2'

Test #8:

score: 0
Accepted
time: 4ms
memory: 50612kb

input:

12 2
1 9
3 11

output:

impossible

result:

ok single line: 'impossible'

Test #9:

score: 0
Accepted
time: 0ms
memory: 50928kb

input:

12 2
1 9
3 12

output:

2

result:

ok single line: '2'

Test #10:

score: 0
Accepted
time: 1ms
memory: 7624kb

input:

12 1
1 12

output:

1

result:

ok single line: '1'

Test #11:

score: 0
Accepted
time: 1ms
memory: 7924kb

input:

12 1
7 6

output:

1

result:

ok single line: '1'

Test #12:

score: 0
Accepted
time: 1ms
memory: 7632kb

input:

12 5
1 2
2 3
1 12
3 4
4 5

output:

1

result:

ok single line: '1'

Test #13:

score: 0
Accepted
time: 1ms
memory: 7880kb

input:

12 5
1 2
2 3
9 8
3 4
4 5

output:

1

result:

ok single line: '1'

Test #14:

score: 0
Accepted
time: 1ms
memory: 7884kb

input:

12 5
1 2
2 3
9 8
3 4
4 10

output:

1

result:

ok single line: '1'

Test #15:

score: 0
Accepted
time: 1ms
memory: 7848kb

input:

3 1
3 2

output:

1

result:

ok single line: '1'

Test #16:

score: 0
Accepted
time: 1ms
memory: 7620kb

input:

3 1
1 3

output:

1

result:

ok single line: '1'

Test #17:

score: 0
Accepted
time: 0ms
memory: 50612kb

input:

3 3
3 3
1 1
2 2

output:

3

result:

ok single line: '3'

Test #18:

score: 0
Accepted
time: 0ms
memory: 50632kb

input:

3 3
1 2
1 1
2 2

output:

impossible

result:

ok single line: 'impossible'

Test #19:

score: 0
Accepted
time: 32ms
memory: 181232kb

input:

1000000 1
42 43

output:

impossible

result:

ok single line: 'impossible'

Test #20:

score: 0
Accepted
time: 1ms
memory: 7692kb

input:

1000000 1
42 41

output:

1

result:

ok single line: '1'

Test #21:

score: 0
Accepted
time: 0ms
memory: 50676kb

input:

12 4
4 10
4 10
4 10
11 3

output:

2

result:

ok single line: '2'

Test #22:

score: 0
Accepted
time: 2ms
memory: 50864kb

input:

12 4
4 10
4 10
4 10
12 3

output:

impossible

result:

ok single line: 'impossible'

Test #23:

score: 0
Accepted
time: 2ms
memory: 50640kb

input:

12 4
11 5
3 8
7 9
10 2

output:

3

result:

ok single line: '3'

Test #24:

score: 0
Accepted
time: 3ms
memory: 50636kb

input:

12 4
11 5
4 8
7 9
10 2

output:

4

result:

ok single line: '4'

Test #25:

score: 0
Accepted
time: 0ms
memory: 50640kb

input:

12 4
1 5
7 8
9 11
11 6

output:

3

result:

ok single line: '3'

Test #26:

score: 0
Accepted
time: 858ms
memory: 241064kb

input:

1000000 1000000
541177 541812
996458 996763
469507 470450
751252 751307
570314 571166
524418 525248
751644 751753
339553 339994
7733 8075
785375 785442
466413 466702
215726 216122
123282 123567
25064 25690
783696 784237
970893 971307
840141 840837
675431 675748
119570 119779
721870 722493
38115 3821...

output:

1041

result:

ok single line: '1041'

Test #27:

score: 0
Accepted
time: 62ms
memory: 101928kb

input:

300000 150001
1 150000
300000 149999
299999 149998
299998 149997
299997 149996
299996 149995
299995 149994
299994 149993
299993 149992
299992 149991
299991 149990
299990 149989
299989 149988
299988 149987
299987 149986
299986 149985
299985 149984
299984 149983
299983 149982
299982 149981
299981 1499...

output:

30002

result:

ok single line: '30002'

Test #28:

score: 0
Accepted
time: 1ms
memory: 7920kb

input:

1000000 990028
141 478
141 265
141 229
141 971
141 498
141 48
141 739
141 122
141 605
141 213
141 36
141 654
141 58
141 211
141 695
141 969
141 425
141 897
141 719
141 489
141 601
141 678
141 251
141 686
141 428
141 137
141 338
141 732
141 720
141 407
141 765
141 825
141 113
141 85
141 683
141 631
1...

output:

1

result:

ok single line: '1'

Test #29:

score: 0
Accepted
time: 16ms
memory: 100564kb

input:

30000 30000
10358 10358
21659 21659
1137 1137
28792 28792
22340 22340
20240 20240
11219 11219
29048 29048
21861 21861
11582 11582
6488 6488
25617 25617
13166 13166
16917 16917
16994 16994
17769 17769
27335 27335
2507 2507
20938 20938
15119 15119
6552 6552
25463 25463
21395 21395
28072 28072
5947 594...

output:

30000

result:

ok single line: '30000'

Test #30:

score: 0
Accepted
time: 15ms
memory: 97464kb

input:

30000 30000
20105 20107
19732 19734
18880 18882
3680 3682
27893 27895
11903 11905
5498 5500
27580 27582
8882 8884
6028 6030
15416 15418
20296 20298
18468 18470
11113 11115
19681 19683
29457 29459
20037 20039
15992 15994
229 231
18945 18947
15357 15359
17250 17252
11071 11073
11670 11672
17372 17374
...

output:

10000

result:

ok single line: '10000'

Test #31:

score: 0
Accepted
time: 12ms
memory: 51244kb

input:

30000 30000
23810 23806
12727 12723
9472 9468
28974 28970
25808 25804
18539 18535
7394 7390
12134 12130
28547 28543
441 437
25377 25373
7521 7517
671 667
15848 15844
10648 10644
20054 20050
12600 12596
15330 15326
11392 11388
13745 13741
2847 2843
21679 21675
28946 28942
6590 6586
19819 19815
11823 ...

output:

2

result:

ok single line: '2'

Test #32:

score: 0
Accepted
time: 28ms
memory: 100768kb

input:

30000 30000
15901 15910
1235 1237
14476 14480
25966 25967
13870 13873
1277 1284
22024 22038
5193 5200
25591 25602
15459 15461
5601 5601
8177 8179
2570 2581
14483 14496
10755 10761
7108 7121
21676 21683
21628 21634
29738 29748
1714 1714
21396 21397
25903 25912
6327 6339
12382 12382
1946 1947
14943 14...

output:

impossible

result:

ok single line: 'impossible'

Test #33:

score: 0
Accepted
time: 19ms
memory: 52272kb

input:

30000 30000
17463 17477
20612 20655
6591 6630
14509 14534
10138 10148
26529 26573
23190 23218
23483 23508
4715 4721
6911 6950
17916 17932
7606 7647
10326 10333
6644 6673
29669 29671
14069 14092
25494 25509
4230 4241
13671 13701
6897 6930
15883 15890
12896 12944
28105 28116
7154 7203
15044 15062
2314...

output:

715

result:

ok single line: '715'

Test #34:

score: 0
Accepted
time: 17ms
memory: 52188kb

input:

30000 30000
26708 26799
17441 17450
14459 14463
23426 23449
26042 26109
18106 18138
12877 12976
15211 15239
7925 7970
25338 25363
3665 3689
1939 1979
23512 23547
7421 7497
29523 29531
28103 28105
21224 21264
20082 20099
27344 27344
29593 29609
4586 4601
1770 1824
5209 5287
27720 27810
21992 22077
24...

output:

337

result:

ok single line: '337'

Test #35:

score: 0
Accepted
time: 25ms
memory: 52028kb

input:

30000 30000
20578 20640
14232 14624
10827 11132
20872 21158
3627 4066
10166 10551
14905 15039
17414 17434
2577 2674
12736 13114
6028 6073
20979 21327
18605 18894
18697 19158
17704 17870
10854 10913
11949 12267
3386 3584
13954 14053
5046 5421
26031 26480
18891 19258
9250 9443
15358 15792
1362 1416
24...

output:

63

result:

ok single line: '63'

Test #36:

score: 0
Accepted
time: 18ms
memory: 51988kb

input:

30000 30000
28683 29240
26484 26784
26251 27180
26556 26761
6745 7581
544 1236
24870 25015
11816 12197
15307 16119
10285 10286
6873 7191
16947 17116
17762 17951
24486 24640
16880 17485
28541 29283
4770 5377
10060 10679
7784 8613
8789 8815
6132 7003
24766 24908
22864 23653
18221 18771
734 1351
13568 ...

output:

31

result:

ok single line: '31'

Test #37:

score: 0
Accepted
time: 0ms
memory: 50804kb

input:

100 1000
36 36
32 32
19 22
5 7
60 63
68 71
49 51
23 23
30 33
21 21
69 69
23 26
4 5
71 73
32 33
37 39
19 19
18 19
2 3
66 69
42 43
71 74
95 95
72 72
72 74
72 73
26 26
43 45
64 64
52 55
4 7
37 37
40 41
68 71
65 65
43 43
21 23
78 81
75 76
29 31
24 25
61 62
97 100
29 31
75 78
23 26
81 82
97 98
52 53
1 1
...

output:

26

result:

ok single line: '26'

Test #38:

score: 0
Accepted
time: 3ms
memory: 50724kb

input:

100 1000
99 2
43 51
17 23
72 75
13 17
7 14
14 18
30 36
74 81
98 6
86 90
17 20
50 53
67 70
97 97
29 30
50 58
61 64
85 93
66 74
3 12
91 98
44 50
54 62
59 59
35 41
5 14
76 84
28 32
55 61
31 32
74 76
55 62
80 82
24 27
10 12
30 33
35 42
91 93
97 1
37 39
2 3
66 75
42 42
56 58
48 55
68 74
89 92
10 10
18 21...

output:

11

result:

ok single line: '11'

Test #39:

score: 0
Accepted
time: 0ms
memory: 50716kb

input:

846 115
94 169
566 639
486 577
102 181
330 347
107 113
36 114
321 394
675 753
84 116
31 104
15 57
463 472
694 777
184 250
348 375
679 700
261 330
766 797
419 432
214 257
246 254
168 256
426 481
615 623
576 657
625 656
417 456
203 240
189 203
80 113
321 324
288 378
669 714
538 564
645 717
487 571
176...

output:

13

result:

ok single line: '13'

Test #40:

score: 0
Accepted
time: 0ms
memory: 50624kb

input:

871 373
40 88
299 386
446 492
573 678
113 149
752 802
557 560
291 336
54 108
861 26
452 540
193 289
155 259
182 330
314 368
43 128
183 287
817 64
71 142
360 440
589 608
125 219
377 443
748 7
759 26
102 204
733 754
129 228
870 72
91 144
21 24
311 343
287 294
793 836
648 719
856 122
167 255
329 390
72...

output:

7

result:

ok single line: '7'

Test #41:

score: 0
Accepted
time: 0ms
memory: 50696kb

input:

1172 541
96 135
962 977
618 626
603 677
199 204
73 161
341 422
406 465
637 665
924 966
418 464
271 323
43 58
1072 1141
763 765
1096 1097
856 938
1027 1072
617 654
1147 1160
165 210
721 761
534 563
198 205
926 951
874 967
766 836
994 995
1125 17
900 986
496 570
437 512
320 320
55 85
776 849
437 497
1...

output:

15

result:

ok single line: '15'

Test #42:

score: 0
Accepted
time: 4ms
memory: 50676kb

input:

624 474
308 342
456 508
260 270
258 305
553 593
329 342
55 98
380 440
80 135
78 117
394 447
282 306
604 9
433 482
610 28
94 141
512 514
75 124
210 263
589 593
194 249
441 485
259 282
442 471
218 226
347 373
541 599
286 333
227 290
447 463
331 356
355 402
25 61
410 411
411 471
131 177
170 223
63 104
...

output:

12

result:

ok single line: '12'

Test #43:

score: 0
Accepted
time: 3ms
memory: 50736kb

input:

1374 307
1158 1217
683 825
1026 1141
975 1063
536 569
1299 30
616 733
376 436
32 132
92 202
406 435
532 655
675 716
1116 1155
382 488
1161 1189
1257 18
654 759
1008 1063
1134 1230
637 751
422 429
882 896
1129 1163
1113 1205
659 706
986 1097
1168 1170
688 785
432 494
956 1058
929 1068
1161 1291
1211 ...

output:

12

result:

ok single line: '12'

Test #44:

score: 0
Accepted
time: 0ms
memory: 50892kb

input:

503 315
436 455
260 297
313 342
444 450
480 486
69 101
241 274
46 51
178 200
502 34
499 37
105 134
270 296
222 252
22 46
62 89
352 361
42 62
340 353
80 107
477 12
484 3
217 241
429 429
311 328
187 221
502 27
124 175
176 226
297 340
263 291
240 287
19 65
374 399
67 98
99 139
131 181
326 355
332 350
2...

output:

12

result:

ok single line: '12'

Test #45:

score: 0
Accepted
time: 0ms
memory: 50976kb

input:

608 442
230 257
267 464
107 230
282 472
54 187
222 379
604 12
515 47
256 258
452 563
505 575
130 187
576 71
354 400
283 441
193 260
130 302
468 534
203 363
608 3
86 148
210 287
119 313
189 198
475 600
366 464
216 265
525 571
406 469
594 183
116 141
322 475
505 36
165 306
600 81
484 36
31 51
580 13
4...

output:

4

result:

ok single line: '4'

Test #46:

score: 0
Accepted
time: 0ms
memory: 50908kb

input:

869 102
588 628
570 620
850 42
5 29
279 301
481 482
819 859
507 574
767 818
654 688
861 9
237 286
218 224
546 567
99 124
620 632
862 2
24 73
461 514
821 7
610 641
314 350
673 680
760 810
600 636
277 332
610 613
543 558
246 262
2 14
531 541
28 76
505 563
827 10
862 50
20 23
778 840
484 551
484 492
65...

output:

impossible

result:

ok single line: 'impossible'