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ID	Problem	Submitter	Result	Time	Memory	Language	File size	Submit time	Judge time
#724917	#8239. Mysterious Tree	ChiTang	AC ✓	8ms	3716kb	C++17	3.2kb	2024-11-08 15:33:41	2024-11-08 15:33:43

Judging History

你现在查看的是最新测评结果

[2024-11-08 15:33:43]
评测

测评结果：AC
用时：8ms
内存：3716kb

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[2024-11-08 15:33:41]
提交

answer

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

#define int long long

const int N = 2e5 + 10;

void solve()
{
    int n;
    cin >> n;

    int numedge = 0;
    int u, v;
    int uu, vv;

    for (int i = 1; i <= n - 1; i += 2)
    {
        cout << "? " << i << ' ' << i + 1 << endl;
        cout.flush();
        int e;
        cin >> e;
        if (e)
        {
            numedge++;
            u = i;
            v = i + 1;
        }
        else
        {
            uu = i;
            vv = i + 1;
        }
    }
    if (numedge >= 2)
    {
        cout << "! 1" << endl;
        cout.flush();

        return;
    }
    if (n % 2 == 1)
    {
        cout << "? " << uu << ' ' << n << endl;
        cout.flush();
        int e;
        cin >> e;
        if (e)
        {
            numedge++;
            u = uu;
            v = n;
        }
    }

    if (numedge == 1)
    {
        int w;
        int ww;
        for (int i = 1; i <= n; i++)
        {
            if (i != u && i != v)
            {
                w = i;
                break;
            }
        }
        cout << "? " << w << ' ' << u << endl;
        cout.flush();
        int e;
        cin >> e;
        if (e)
        {
            for (int i = 1; i <= n; i++)
            {
                if (i != u && i != v && i != w)
                {
                    ww = i;
                    break;
                }
            }
            cout << "? " << ww << ' ' << u << endl;
            cout.flush();
            int e;
            cin >> e;
            if (e)
            {
                cout << "! 2" << endl;
                cout.flush();
                return;
            }
            else
            {
                cout << "! 1" << endl;
                cout.flush();
                return;
            }
        }
        else
        {
            cout << "? " << w << ' ' << v << endl;
            cout.flush();
            int e;
            cin >> e;
            if (e)
            {
                for (int i = 1; i <= n; i++)
                {
                    if (i != u && i != v && i != w)
                    {
                        ww = i;
                        break;
                    }
                }
                cout << "? " << ww << ' ' << v << endl;
                cout.flush();
                int e;
                cin >> e;
                if (e)
                {
                    cout << "! 2" << endl;
                    cout.flush();
                    return;
                }
                else
                {
                    cout << "! 1" << endl;
                    cout.flush();
                    return;
                }
            }else{
                cout << "! 1" << endl;
                    cout.flush();
                    return;
            }
        }
    }
    else
    {
        cout << "! 1" << endl;
        cout.flush();

        return;
    }
}

signed main()
{
    ios::sync_with_stdio(0);
    cin.tie(0), cout.tie(0);

    int t = 1;
    cin >> t;
    while (t--)
    {
        solve();
    }

    return 0;
}

Source code, Language: C++17

这程序好像有点Bug，我给组数据试试？

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100

Accepted

time: 1ms

memory: 3592kb

input:

output:

result:

ok Correct (2 test cases)

Test #2:

score: 0

Accepted

time: 3ms

memory: 3648kb

input:

output:

result:

ok Correct (87 test cases)

Test #3:

score: 0

Accepted

time: 3ms

memory: 3668kb

input:

output:

result:

ok Correct (135 test cases)

Test #4:

score: 0

Accepted

time: 7ms

memory: 3672kb

input:

output:

result:

ok Correct (136 test cases)

Test #5:

score: 0

Accepted

time: 3ms

memory: 3660kb

input:

output:

result:

ok Correct (5 test cases)

Test #6:

score: 0

Accepted

time: 3ms

memory: 3716kb

input:

output:

result:

ok Correct (7 test cases)

Test #7:

score: 0

Accepted

time: 6ms

memory: 3644kb

input:

output:

result:

ok Correct (160 test cases)

Test #8:

score: 0

Accepted

time: 8ms

memory: 3616kb

input:

output:

result:

ok Correct (117 test cases)

Test #9:

score: 0

Accepted

time: 8ms

memory: 3652kb

input:

output:

result:

ok Correct (99 test cases)

Test #10:

score: 0

Accepted

time: 0ms

memory: 3588kb

input:

output:

result:

ok Correct (84 test cases)

Test #11:

score: 0

Accepted

time: 5ms

memory: 3672kb

input:

output:

result:

ok Correct (23 test cases)

Test #12:

score: 0

Accepted

time: 0ms

memory: 3708kb

input:

output:

result:

ok Correct (20 test cases)

Test #13:

score: 0

Accepted

time: 3ms

memory: 3592kb

input:

output:

result:

ok Correct (9 test cases)

Test #14:

score: 0

Accepted

time: 3ms

memory: 3576kb

input:

output:

result:

ok Correct (6 test cases)

Test #15:

score: 0

Accepted

time: 3ms

memory: 3664kb

input:

output:

result:

ok Correct (4 test cases)

Test #16:

score: 0

Accepted

time: 0ms

memory: 3652kb

input:

output:

result:

ok Correct (146 test cases)

Test #17:

score: 0

Accepted

time: 0ms

memory: 3668kb

input:

output:

result:

ok Correct (117 test cases)

Test #18:

score: 0

Accepted

time: 4ms

memory: 3708kb

input:

output:

result:

ok Correct (105 test cases)

Test #19:

score: 0

Accepted

time: 0ms

memory: 3652kb

input:

output:

result:

ok Correct (86 test cases)

Test #20:

score: 0

Accepted

time: 4ms

memory: 3648kb

input:

output:

result:

ok Correct (20 test cases)

Test #21:

score: 0

Accepted

time: 4ms

memory: 3580kb

input:

output:

result:

ok Correct (9 test cases)

Test #22:

score: 0

Accepted

time: 0ms

memory: 3716kb

input:

output:

result:

ok Correct (12 test cases)

Test #23:

score: 0

Accepted

time: 4ms

memory: 3672kb

input:

output:

result:

ok Correct (5 test cases)

Test #24:

score: 0

Accepted

time: 0ms

memory: 3648kb

input:

output:

result:

ok Correct (81 test cases)

Test #25:

score: 0

Accepted

time: 4ms

memory: 3716kb

input:

output:

result:

ok Correct (24 test cases)

Test #26:

score: 0

Accepted

time: 0ms

memory: 3588kb

input:

output:

result:

ok Correct (9 test cases)

Test #27:

score: 0

Accepted

time: 0ms

memory: 3648kb

input:

output:

result:

ok Correct (8 test cases)

Test #28:

score: 0

Accepted

time: 3ms

memory: 3644kb

input:

output:

result:

ok Correct (10 test cases)

Test #29:

score: 0

Accepted

time: 2ms

memory: 3556kb

input:

output:

result:

ok Correct (1 test case)

Test #30:

score: 0

Accepted

time: 0ms

memory: 3652kb

input:

output:

result:

ok Correct (2 test cases)

Test #31:

score: 0

Accepted

time: 0ms

memory: 3664kb

input:

output:

result:

ok Correct (4 test cases)

Test #32:

score: 0

Accepted

time: 0ms

memory: 3580kb

input:

output:

result:

ok Correct (1 test case)

Test #33:

score: 0

Accepted

time: 3ms

memory: 3648kb

input:

output:

result:

ok Correct (1 test case)

Test #34:

score: 0

Accepted

time: 2ms

memory: 3648kb

input:

output:

result:

ok Correct (1 test case)

Test #35:

score: 0

Accepted

time: 3ms

memory: 3592kb

input:

output:

result:

ok Correct (2 test cases)

Test #36:

score: 0

Accepted

time: 0ms

memory: 3652kb

input:

output:

result:

ok Correct (2 test cases)

Test #37:

score: 0

Accepted

time: 2ms

memory: 3672kb

input:

output:

result:

ok Correct (2 test cases)

Test #38:

score: 0

Accepted

time: 0ms

memory: 3676kb

input:

output:

result:

ok Correct (4 test cases)

Test #39:

score: 0

Accepted

time: 0ms

memory: 3672kb

input:

output:

result:

ok Correct (4 test cases)

Test #40:

score: 0

Accepted

time: 3ms

memory: 3596kb

input:

output:

result:

ok Correct (4 test cases)

Test #41:

score: 0

Accepted

time: 1ms

memory: 3652kb

input:

output:

result:

ok Correct (1 test case)

Extra Test:

score: 0

Extra Test Passed