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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
#338964	#8239. Mysterious Tree	rgnerdplayer	AC ✓	8ms	3740kb	C++20	1.4kb	2024-02-26 15:39:08	2024-02-26 15:39:10

Judging History

你现在查看的是最新测评结果

[2024-02-26 15:39:10]
评测

测评结果：AC
用时：8ms
内存：3740kb

查看

[2024-02-26 15:39:08]
提交

answer

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

using i64 = long long;

int main() {
    cin.tie(nullptr)->sync_with_stdio(false);

    int t;
    cin >> t;

    auto solve = [&]() {
        int n;
        cin >> n;

        auto ask = [&](int u, int v) {
            cout << "? " << u + 1 << ' ' << v + 1 << endl;
            int res;
            cin >> res;
            return res;
        };

        auto answer = [&](int ans) {
            cout << "! " << ans << endl;
        };

        int u = -1;
        for (int i = 0; i + 1 < n; i += 2) {
            if (ask(i, i + 1)) {
                u = i;
            }
        }
        if (n % 2 == 1) {
            if (ask(n - 2, n - 1)) {
                u = n - 2;
            }
        }

        if (u == -1) {
            answer(1);
            return;
        }

        int v = u + 1;
        int x = 0, y = 0;
        while (x == u || x == v) {
            x++;
        }
        while (y == u || y == v || y == x) {
            y++;
        }

        bool fu = ask(u, x), fv = ask(v, x);
        if (!fu && !fv) {
            answer(1);
            return;
        }

        if (!fu) {
            swap(u, v);
        }

        if (ask(u, y)) {
            answer(2);
        } else {
            answer(1);
        }
    };

    while (t--) {
        solve();
    }
    
    return 0;
}

源文件, 语言: C++20

这程序好像有点Bug，我给组数据试试？

详细

Test #1:

score: 100

Accepted

time: 1ms

memory: 3640kb

input:

output:

result:

ok Correct (2 test cases)

Test #2:

score: 0

Accepted

time: 0ms

memory: 3724kb

input:

output:

result:

ok Correct (87 test cases)

Test #3:

score: 0

Accepted

time: 8ms

memory: 3672kb

input:

output:

result:

ok Correct (135 test cases)

Test #4:

score: 0

Accepted

time: 3ms

memory: 3732kb

input:

output:

result:

ok Correct (136 test cases)

Test #5:

score: 0

Accepted

time: 1ms

memory: 3668kb

input:

output:

result:

ok Correct (5 test cases)

Test #6:

score: 0

Accepted

time: 3ms

memory: 3664kb

input:

output:

result:

ok Correct (7 test cases)

Test #7:

score: 0

Accepted

time: 5ms

memory: 3692kb

input:

output:

result:

ok Correct (160 test cases)

Test #8:

score: 0

Accepted

time: 2ms

memory: 3620kb

input:

output:

result:

ok Correct (117 test cases)

Test #9:

score: 0

Accepted

time: 0ms

memory: 3736kb

input:

output:

result:

ok Correct (99 test cases)

Test #10:

score: 0

Accepted

time: 0ms

memory: 3616kb

input:

output:

result:

ok Correct (84 test cases)

Test #11:

score: 0

Accepted

time: 1ms

memory: 3672kb

input:

output:

result:

ok Correct (23 test cases)

Test #12:

score: 0

Accepted

time: 4ms

memory: 3620kb

input:

output:

result:

ok Correct (20 test cases)

Test #13:

score: 0

Accepted

time: 3ms

memory: 3612kb

input:

output:

result:

ok Correct (9 test cases)

Test #14:

score: 0

Accepted

time: 0ms

memory: 3664kb

input:

output:

result:

ok Correct (6 test cases)

Test #15:

score: 0

Accepted

time: 3ms

memory: 3740kb

input:

output:

result:

ok Correct (4 test cases)

Test #16:

score: 0

Accepted

time: 7ms

memory: 3736kb

input:

output:

result:

ok Correct (146 test cases)

Test #17:

score: 0

Accepted

time: 3ms

memory: 3692kb

input:

output:

result:

ok Correct (117 test cases)

Test #18:

score: 0

Accepted

time: 0ms

memory: 3688kb

input:

output:

result:

ok Correct (105 test cases)

Test #19:

score: 0

Accepted

time: 0ms

memory: 3736kb

input:

output:

result:

ok Correct (86 test cases)

Test #20:

score: 0

Accepted

time: 4ms

memory: 3612kb

input:

output:

result:

ok Correct (20 test cases)

Test #21:

score: 0

Accepted

time: 2ms

memory: 3608kb

input:

output:

result:

ok Correct (9 test cases)

Test #22:

score: 0

Accepted

time: 4ms

memory: 3612kb

input:

output:

result:

ok Correct (12 test cases)

Test #23:

score: 0

Accepted

time: 0ms

memory: 3676kb

input:

output:

result:

ok Correct (5 test cases)

Test #24:

score: 0

Accepted

time: 4ms

memory: 3604kb

input:

output:

result:

ok Correct (81 test cases)

Test #25:

score: 0

Accepted

time: 4ms

memory: 3728kb

input:

output:

result:

ok Correct (24 test cases)

Test #26:

score: 0

Accepted

time: 4ms

memory: 3648kb

input:

output:

result:

ok Correct (9 test cases)

Test #27:

score: 0

Accepted

time: 2ms

memory: 3656kb

input:

output:

result:

ok Correct (8 test cases)

Test #28:

score: 0

Accepted

time: 0ms

memory: 3604kb

input:

output:

result:

ok Correct (10 test cases)

Test #29:

score: 0

Accepted

time: 0ms

memory: 3688kb

input:

output:

result:

ok Correct (1 test case)

Test #30:

score: 0

Accepted

time: 4ms

memory: 3664kb

input:

output:

result:

ok Correct (2 test cases)

Test #31:

score: 0

Accepted

time: 3ms

memory: 3732kb

input:

output:

result:

ok Correct (4 test cases)

Test #32:

score: 0

Accepted

time: 3ms

memory: 3684kb

input:

output:

result:

ok Correct (1 test case)

Test #33:

score: 0

Accepted

time: 3ms

memory: 3616kb

input:

output:

result:

ok Correct (1 test case)

Test #34:

score: 0

Accepted

time: 3ms

memory: 3692kb

input:

output:

result:

ok Correct (1 test case)

Test #35:

score: 0

Accepted

time: 3ms

memory: 3688kb

input:

output:

result:

ok Correct (2 test cases)

Test #36:

score: 0

Accepted

time: 3ms

memory: 3692kb

input:

output:

result:

ok Correct (2 test cases)

Test #37:

score: 0

Accepted

time: 3ms

memory: 3724kb

input:

output:

result:

ok Correct (2 test cases)

Test #38:

score: 0

Accepted

time: 0ms

memory: 3668kb

input:

output:

result:

ok Correct (4 test cases)

Test #39:

score: 0

Accepted

time: 1ms

memory: 3732kb

input:

output:

result:

ok Correct (4 test cases)

Test #40:

score: 0

Accepted

time: 3ms

memory: 3604kb

input:

output:

result:

ok Correct (4 test cases)

Test #41:

score: 0

Accepted

time: 3ms

memory: 3684kb

input:

output:

result:

ok Correct (1 test case)

Extra Test:

score: 0

Extra Test Passed