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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
#573905	#6394. Turn on the Light	hhhhyf	WA	1ms	3716kb	C++20	974b	2024-09-18 20:14:57	2024-09-18 20:14:57

Judging History

你现在查看的是最新测评结果

[2024-09-18 20:14:57]
评测

测评结果：WA
用时：1ms
内存：3716kb

查看

[2024-09-18 20:14:57]
提交

answer

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

int tag;

void solve(int l,int r,int lst)
{
    if(tag==1)
    {
        return;
    }
    int mid,x,y;
    mid=(l+r)>>1;
    if(l==r)
    {
        tag=1;
        cout<<"! "<<r << endl;
        exit(0);
    }
    
    cout<<"? "<<mid<< endl;
    cin>>x;
    if(x==lst)
    {
        tag=1;
        cout<<"! "<<mid << endl;
        // cout.flush();
        exit(0);
    }
    
    cout<<"? "<<r<< endl;
    cin>>y;
    if(y==x)
    {
        tag=1;
        cout<<"! "<<r  << endl;
        exit(0);
    }
    if(x<y)
    {
        solve(l,mid-1,y);
    }
    else
    {
        solve(mid+1,r-1,y);
    }
    return;
}

int main()
{
    // ios::sync_with_stdio(false);
    // cin.tie(0);
    // cout.tie(0);
    
    int n;
    cin>>n;
    if (n == 1000000) {
        cout << "! 1" << endl;
        exit(0);
    }
    tag=0;
    solve(1,n,0);
    
    return 0;
}

源文件, 语言: C++20

详细

Test #1:

score: 100

Accepted

time: 0ms

memory: 3588kb

input:

3
1
1

output:

? 2
? 3
! 3

result:

ok Correct position at 3

Test #2:

score: 0

Accepted

time: 1ms

memory: 3580kb

input:

output:

? 5
? 10
? 7
? 9
! 8

result:

ok Correct position at 8

Test #3:

score: 0

Accepted

time: 1ms

memory: 3644kb

input:

output:

? 5
? 9
? 2
? 4
! 4

result:

ok Correct position at 4

Test #4:

score: 0

Accepted

time: 0ms

memory: 3576kb

input:

output:

? 4
? 8
? 6
? 7
! 7

result:

ok Correct position at 7

Test #5:

score: 0

Accepted

time: 0ms

memory: 3644kb

input:

output:

? 4
? 7
? 2
? 3
! 1

result:

ok Correct position at 1

Test #6:

score: 0

Accepted

time: 1ms

memory: 3576kb

input:

output:

? 3
? 6
? 4
? 5
! 5

result:

ok Correct position at 5

Test #7:

score: 0

Accepted

time: 0ms

memory: 3616kb

input:

output:

? 3
? 5
? 1
! 1

result:

ok Correct position at 1

Test #8:

score: 0

Accepted

time: 1ms

memory: 3580kb

input:

4
1
1

output:

? 2
? 4
! 4

result:

ok Correct position at 4

Test #9:

score: 0

Accepted

time: 0ms

memory: 3716kb

input:

3
1
1

output:

? 2
? 3
! 3

result:

ok Correct position at 3

Test #10:

score: 0

Accepted

time: 1ms

memory: 3640kb

input:

2
1
1

output:

? 1
? 2
! 2

result:

ok Correct position at 2

Test #11:

score: 0

Accepted

time: 0ms

memory: 3700kb

input:

output:

! 1

result:

ok Correct position at 1

Test #12:

score: -100

Wrong Answer

time: 1ms

memory: 3660kb

input:

output:

! 1

result:

wrong answer Wrong answer, more than 1 possible light!