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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#179000#7114. Best Interactive PlayerzhoujiuAC ✓1ms3692kbC++20318b2023-09-14 16:30:372023-09-14 16:30:37

Judging History

你现在查看的是最新测评结果

  • [2023-09-14 16:30:37]
  • 评测
  • 测评结果：AC
  • 用时：1ms
  • 内存：3692kb
查看
  • [2023-09-14 16:30:37]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;

signed main()
{
    int l=1,r=1e9;
    while(l<r)
    {
        int mid=l+r+1>>1;
        cout<<"? "<<mid<<endl;
        int x;
        cin>>x;
        
        if(x) r=mid-1;
        else l=mid;
    }
    
    cout<<"! "<<l<<endl;
    
    return 0;
}
Source code, Language: C++20

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 1ms
memory: 3536kb

input:

1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0

output:

? 500000001
? 250000001
? 125000001
? 62500001
? 31250001
? 15625001
? 7812501
? 3906251
? 1953126
? 976563
? 488282
? 244141
? 122071
? 61036
? 30518
? 15259
? 7630
? 3815
? 1908
? 954
? 477
? 239
? 120
? 60
? 30
? 15
? 8
? 4
? 2
? 3
! 3

result:

ok ok

Test #2:

score: 0
Accepted
time: 0ms
memory: 3592kb

input:

1
1
0
0
0
1
1
1
0
0
1
1
1
1
1
1
1
0
0
0
0
0
1
1
1
0
1
1
0
0

output:

? 500000001
? 250000001
? 125000001
? 187500001
? 218750001
? 234375001
? 226562501
? 222656251
? 220703126
? 221679688
? 222167969
? 221923828
? 221801758
? 221740723
? 221710205
? 221694946
? 221687317
? 221683502
? 221685409
? 221686363
? 221686840
? 221687078
? 221687197
? 221687137
? 221687107
...

result:

ok ok

Test #3:

score: 0
Accepted
time: 1ms
memory: 3604kb

input:

1
0
0
1
1
0
0
1
1
0
1
0
1
0
0
0
1
0
1
0
0
0
1
1
1
0
0
1
1
0

output:

? 500000001
? 250000001
? 375000001
? 437500001
? 406250001
? 390625001
? 398437501
? 402343751
? 400390626
? 399414063
? 399902344
? 399658203
? 399780273
? 399719238
? 399749755
? 399765014
? 399772643
? 399768828
? 399770735
? 399769781
? 399770258
? 399770496
? 399770615
? 399770555
? 399770525
...

result:

ok ok

Test #4:

score: 0
Accepted
time: 1ms
memory: 3596kb

input:

1
0
1
1
0
1
1
1
1
0
0
1
0
1
0
0
1
0
1
1
1
1
0
1
1
0
0
1
0
1

output:

? 500000001
? 250000001
? 375000001
? 312500001
? 281250001
? 296875001
? 289062501
? 285156251
? 283203126
? 282226563
? 282714844
? 282958985
? 282836914
? 282897949
? 282867431
? 282882690
? 282890319
? 282886504
? 282888411
? 282887457
? 282886980
? 282886742
? 282886623
? 282886682
? 282886652
...

result:

ok ok

Test #5:

score: 0
Accepted
time: 1ms
memory: 3540kb

input:

1
0
0
0
1
0
0
1
1
1
1
1
1
1
0
1
1
1
0
1
1
1
0
1
1
0
0
0
1
0

output:

? 500000001
? 250000001
? 375000001
? 437500001
? 468750001
? 453125001
? 460937501
? 464843751
? 462890626
? 461914063
? 461425782
? 461181641
? 461059571
? 460998536
? 460968018
? 460983277
? 460975647
? 460971832
? 460969925
? 460970878
? 460970401
? 460970163
? 460970044
? 460970103
? 460970073
...

result:

ok ok

Test #6:

score: 0
Accepted
time: 1ms
memory: 3540kb

input:

0
1
0
1
1
1
0
0
0
1
1
0
0
1
1
0
1
1
1
1
1
1
0
1
0
1
1
1
0
0

output:

? 500000001
? 750000001
? 625000001
? 687500001
? 656250001
? 640625001
? 632812501
? 636718751
? 638671876
? 639648438
? 639160157
? 638916016
? 639038086
? 639099121
? 639068603
? 639053344
? 639060973
? 639057158
? 639055251
? 639054297
? 639053820
? 639053582
? 639053463
? 639053522
? 639053492
...

result:

ok ok

Test #7:

score: 0
Accepted
time: 1ms
memory: 3688kb

input:

0
0
1
0
1
1
1
0
1
1
0
1
0
0
0
0
0
0
0
1
1
1
0
1
0
1
1
0
0
0

output:

? 500000001
? 750000001
? 875000001
? 812500001
? 843750001
? 828125001
? 820312501
? 816406251
? 818359376
? 817382813
? 816894532
? 817138672
? 817016602
? 817077637
? 817108154
? 817123413
? 817131042
? 817134857
? 817136764
? 817137718
? 817137241
? 817137002
? 817136883
? 817136942
? 817136912
...

result:

ok ok

Test #8:

score: 0
Accepted
time: 1ms
memory: 3692kb

input:

0
1
0
0
1
1
0
0
1
0
1
1
1
1
0
0
0
0
1
1
0
1
1
1
0
1
0
1
1
0

output:

? 500000001
? 750000001
? 625000001
? 687500001
? 718750001
? 703125001
? 695312501
? 699218751
? 701171876
? 700195313
? 700683594
? 700439453
? 700317383
? 700256348
? 700225830
? 700241089
? 700248718
? 700252533
? 700254440
? 700253486
? 700253009
? 700253247
? 700253128
? 700253068
? 700253038
...

result:

ok ok

Test #9:

score: 0
Accepted
time: 1ms
memory: 3692kb

input:

0
0
1
0
0
1
1
1
1
0
1
0
0
0
0
0
1
1
1
0
1
0
1
1
1
0
0
1
1
0

output:

? 500000001
? 750000001
? 875000001
? 812500001
? 843750001
? 859375001
? 851562501
? 847656251
? 845703126
? 844726563
? 845214844
? 844970703
? 845092773
? 845153808
? 845184326
? 845199585
? 845207214
? 845203399
? 845201492
? 845200538
? 845201015
? 845200776
? 845200895
? 845200835
? 845200805
...

result:

ok ok

Test #10:

score: 0
Accepted
time: 1ms
memory: 3636kb

input:

0
0
0
1
1
1
1
1
1
0
0
1
1
0
1
1
0
0
1
0
0
1
1
1
1
0
0
0
0
0

output:

? 500000001
? 750000001
? 875000001
? 937500001
? 906250001
? 890625001
? 882812501
? 878906251
? 876953126
? 875976563
? 876464844
? 876708985
? 876586914
? 876525879
? 876556396
? 876541137
? 876533508
? 876537322
? 876539229
? 876538275
? 876538752
? 876538990
? 876538871
? 876538811
? 876538781
...

result:

ok ok

Test #11:

score: 0
Accepted
time: 0ms
memory: 3568kb

input:

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

output:

? 500000001
? 750000001
? 875000001
? 937500001
? 968750001
? 984375001
? 992187501
? 996093751
? 998046876
? 999023438
? 999511719
? 999755860
? 999877930
? 999938965
? 999969483
? 999984742
? 999992371
? 999996186
? 999998093
? 999999047
? 999999524
? 999999762
? 999999881
? 999999941
? 999999971
...

result:

ok ok

Test #12:

score: 0
Accepted
time: 1ms
memory: 3628kb

input:

1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1

output:

? 500000001
? 250000001
? 125000001
? 62500001
? 31250001
? 15625001
? 7812501
? 3906251
? 1953126
? 976563
? 488282
? 244141
? 122071
? 61036
? 30518
? 15259
? 7630
? 3815
? 1908
? 954
? 477
? 239
? 120
? 60
? 30
? 15
? 8
? 4
? 2
! 1

result:

ok ok
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