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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
#371692#6394. Turn on the LightTANGTANGCCWA 1ms3916kbC++231.1kb2024-03-30 15:01:332024-03-30 15:01:41

Judging History

你现在查看的是最新测评结果

  • [2024-03-30 15:01:41]
  • 评测
  • 测评结果：WA
  • 用时：1ms
  • 内存：3916kb
查看
  • [2024-03-30 15:01:33]
  • 提交

answer

#include <bits/stdc++.h>
#include <sstream>

//#define int long long
#define endl '\n'
#define IO ios::sync_with_stdio(false);cin.tie(0);cout.tie(0)
typedef long long ll;

using namespace std;

signed main() {
    int n,x,y;
    cin>>n;
    int a;
    printf("? 1\n");
    cin>>a;
    if(n==2 and a==1) {
        printf("! 2");
        return 0;
    }
    if(n==2 and a==0) {
        printf("! 1");
        return 0;
    }
    int l=1,r=n;
    while(l<=r) {
        int m=(l+r)>>1;
        printf("? %d\n",m);
        cin>>x;
        if(x==0 and a==1) {
            a=x;
            r=m-1;
            m=(l+r)>>1;
            printf("? %d\n",l);
            cin>>x;
            if(a==x) {
                printf("! %d",l);
                return 0;
            }
            a=x;
            continue;
        }
        if(x==a) {
            printf("! %d",m);
            return 0;
        }
        else if(x==a+1) {
            l=m+1;
        }
        else if(x==a-1) {
            r=m-1;
        }
        a=x;
    }
    printf("! %d",l);
    return 0;
}
源文件, 语言: C++23

詳細信息

Test #1:

score: 100
Accepted
time: 1ms
memory: 3840kb

input:

3
1
2
2

output:

? 1
? 2
? 3
! 3

result:

ok Correct position at 3

Test #2:

score: 0
Accepted
time: 0ms
memory: 3720kb

input:

10
1
2
3
3

output:

? 1
? 5
? 8
? 9
! 9

result:

ok Correct position at 9

Test #3:

score: 0
Accepted
time: 0ms
memory: 3780kb

input:

9
1
2
3
3

output:

? 1
? 5
? 7
? 8
! 8

result:

ok Correct position at 8

Test #4:

score: 0
Accepted
time: 0ms
memory: 3780kb

input:

8
1
2
3
3

output:

? 1
? 4
? 6
? 7
! 7

result:

ok Correct position at 7

Test #5:

score: 0
Accepted
time: 0ms
memory: 3820kb

input:

7
1
2
3
3

output:

? 1
? 4
? 6
? 7
! 7

result:

ok Correct position at 7

Test #6:

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

input:

6
1
2
3
3

output:

? 1
? 3
? 5
? 6
! 6

result:

ok Correct position at 6

Test #7:

score: 0
Accepted
time: 1ms
memory: 3824kb

input:

5
1
2
3
3

output:

? 1
? 3
? 4
? 5
! 5

result:

ok Correct position at 5

Test #8:

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

input:

4
1
2
3
3

output:

? 1
? 2
? 3
? 4
! 4

result:

ok Correct position at 4

Test #9:

score: 0
Accepted
time: 0ms
memory: 3792kb

input:

3
1
1

output:

? 1
? 2
! 2

result:

ok Correct position at 2

Test #10:

score: 0
Accepted
time: 0ms
memory: 3736kb

input:

2
1

output:

? 1
! 2

result:

ok Correct position at 2

Test #11:

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

input:

1
0
0

output:

? 1
? 1
! 1

result:

ok Correct position at 1

Test #12:

score: 0
Accepted
time: 1ms
memory: 3784kb

input:

1000000
1
2
3
4
5
6
7
6
7
8
7
8
9
10
11
12
13
14
15
16
16

output:

? 1
? 500000
? 750000
? 875000
? 937500
? 968750
? 984375
? 992188
? 988281
? 990234
? 991211
? 990722
? 990966
? 991088
? 991149
? 991180
? 991195
? 991203
? 991207
? 991209
? 991210
! 991210

result:

ok Correct position at 991210

Test #13:

score: 0
Accepted
time: 1ms
memory: 3860kb

input:

999999
1
2
3
2
3
2
1
2
3
4
3
4
5
6
7
8
9
10
11
12
12

output:

? 1
? 500000
? 750000
? 875000
? 812500
? 843750
? 828125
? 820312
? 824218
? 826171
? 827148
? 826659
? 826903
? 827025
? 827086
? 827117
? 827132
? 827140
? 827144
? 827146
? 827147
! 827147

result:

ok Correct position at 827147

Test #14:

score: 0
Accepted
time: 1ms
memory: 3912kb

input:

999998
1
2
3
2
3
2
1
2
3
4
3
4
5
6
7
8
9
10
11
12
12

output:

? 1
? 499999
? 749999
? 874999
? 812499
? 843749
? 828124
? 820311
? 824217
? 826170
? 827147
? 826658
? 826902
? 827024
? 827085
? 827116
? 827131
? 827139
? 827143
? 827145
? 827146
! 827146

result:

ok Correct position at 827146

Test #15:

score: 0
Accepted
time: 0ms
memory: 3736kb

input:

999997
1
2
3
2
3
2
1
2
3
4
3
4
5
6
7
8
9
10
11
12
12

output:

? 1
? 499999
? 749998
? 874998
? 812498
? 843748
? 828123
? 820310
? 824216
? 826169
? 827146
? 826657
? 826901
? 827023
? 827084
? 827115
? 827130
? 827138
? 827142
? 827144
? 827145
! 827145

result:

ok Correct position at 827145

Test #16:

score: 0
Accepted
time: 1ms
memory: 3744kb

input:

999996
1
2
3
2
3
2
1
2
3
4
3
4
5
6
7
8
9
10
11
12
12

output:

? 1
? 499998
? 749997
? 874997
? 812497
? 843747
? 828122
? 820309
? 824215
? 826168
? 827145
? 826656
? 826900
? 827022
? 827083
? 827114
? 827129
? 827137
? 827141
? 827143
? 827144
! 827144

result:

ok Correct position at 827144

Test #17:

score: 0
Accepted
time: 1ms
memory: 3820kb

input:

999995
1
2
3
4
5
4
3
4
5
6
5
6
7
8
9
10
11
12
13
14
14

output:

? 1
? 499998
? 749997
? 874996
? 937496
? 968746
? 953121
? 945308
? 949214
? 951167
? 952144
? 951655
? 951899
? 952021
? 952082
? 952113
? 952128
? 952136
? 952140
? 952142
? 952143
! 952143

result:

ok Correct position at 952143

Test #18:

score: 0
Accepted
time: 1ms
memory: 3736kb

input:

999994
1
2
3
4
5
4
3
4
5
6
5
6
7
8
9
10
11
12
13
14
14

output:

? 1
? 499997
? 749996
? 874995
? 937495
? 968745
? 953120
? 945307
? 949213
? 951166
? 952143
? 951654
? 951898
? 952020
? 952081
? 952112
? 952127
? 952135
? 952139
? 952141
? 952142
! 952142

result:

ok Correct position at 952142

Test #19:

score: 0
Accepted
time: 1ms
memory: 3736kb

input:

999993
1
2
3
4
5
4
3
4
5
6
5
6
7
8
9
10
11
12
13
14
14

output:

? 1
? 499997
? 749995
? 874994
? 937494
? 968744
? 953119
? 945306
? 949212
? 951165
? 952142
? 951653
? 951897
? 952019
? 952080
? 952111
? 952126
? 952134
? 952138
? 952140
? 952141
! 952141

result:

ok Correct position at 952141

Test #20:

score: 0
Accepted
time: 1ms
memory: 3916kb

input:

999992
1
2
3
4
5
4
3
4
5
6
5
6
7
8
9
10
11
12
13
14
14

output:

? 1
? 499996
? 749994
? 874993
? 937493
? 968743
? 953118
? 945305
? 949211
? 951164
? 952141
? 951652
? 951896
? 952018
? 952079
? 952110
? 952125
? 952133
? 952137
? 952139
? 952140
! 952140

result:

ok Correct position at 952140

Test #21:

score: 0
Accepted
time: 1ms
memory: 3796kb

input:

999991
1
2
3
2
3
2
1
2
3
4
3
4
5
6
7
8
9
10
11
12
12

output:

? 1
? 499996
? 749994
? 874993
? 812493
? 843743
? 828118
? 820305
? 824211
? 826164
? 827141
? 826652
? 826896
? 827018
? 827079
? 827110
? 827125
? 827133
? 827137
? 827139
? 827140
! 827140

result:

ok Correct position at 827140

Test #22:

score: -100
Wrong Answer
time: 1ms
memory: 3856kb

input:

1000000
1
0
0

output:

? 1
? 500000
? 1
! 1

result:

wrong answer Wrong favorite light!
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