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ID	Problem	Submitter	Result	Time	Memory	Language	File size	Submit time	Judge time
#485629	#8239. Mysterious Tree	Swarthmore^#	AC ✓	5ms	3736kb	C++14	1.4kb	2024-07-20 21:42:17	2024-07-20 21:42:18

Judging History

你现在查看的是最新测评结果

[2024-07-20 21:42:18]
评测

测评结果：AC
用时：5ms
内存：3736kb

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[2024-07-20 21:42:17]
提交

answer

#include <bits/stdc++.h>

using namespace std;

int query(int x, int y) {
    cout << "? " << x << " " << y << endl;
    int ret;
    cin >> ret;
    return ret;
}

void solve() {
    int n;
    cin >> n;
    int ct = 0;
    int a = -1;
    for (int i = 1; i + 1 <= n; i += 2) {
        int ret = query(i, i+1);
        if (ret == 1) {
            ct++;
            if (ct >= 2) {
                cout << "! 1" << endl;
                return;
            }
            a = i;
        }
    }
    if (ct == 0) {
        if (n % 2 == 0) {
            cout << "! 1" << endl;
            return;
        }
        // Check n with 1,2,3 to see if possible a star at n 
        for (int i = 1; i <= 3; i++) {
            if (query(i, n) == 0) {
                cout << "! 1" << endl;
                return; 
            }
        }
        cout << "! 2" << endl;
        return;
    }
    // Query a and something else;
    for (int x = a; x <= a+1; x++) {
        bool tf = true;
        for (int i = 1; i <= 2; i++) {
            int ret = query(x, (a == 1) ? 2 + i : i);
            if (ret == 0) {
                tf = false;
                break;
            }
        }
        if (tf) {
            cout << "! 2" << endl;
            return;
        }
    }
    cout << "! 1" << endl;
}

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

Source code, Language: C++14

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: 3596kb

input:

output:

result:

ok Correct (2 test cases)

Test #2:

score: 0

Accepted

time: 5ms

memory: 3716kb

input:

output:

result:

ok Correct (87 test cases)

Test #3:

score: 0

Accepted

time: 0ms

memory: 3656kb

input:

output:

result:

ok Correct (135 test cases)

Test #4:

score: 0

Accepted

time: 2ms

memory: 3656kb

input:

output:

result:

ok Correct (136 test cases)

Test #5:

score: 0

Accepted

time: 3ms

memory: 3676kb

input:

output:

result:

ok Correct (5 test cases)

Test #6:

score: 0

Accepted

time: 0ms

memory: 3652kb

input:

output:

result:

ok Correct (7 test cases)

Test #7:

score: 0

Accepted

time: 0ms

memory: 3640kb

input:

output:

result:

ok Correct (160 test cases)

Test #8:

score: 0

Accepted

time: 1ms

memory: 3568kb

input:

output:

result:

ok Correct (117 test cases)

Test #9:

score: 0

Accepted

time: 4ms

memory: 3604kb

input:

output:

result:

ok Correct (99 test cases)

Test #10:

score: 0

Accepted

time: 2ms

memory: 3596kb

input:

output:

result:

ok Correct (84 test cases)

Test #11:

score: 0

Accepted

time: 0ms

memory: 3656kb

input:

output:

result:

ok Correct (23 test cases)

Test #12:

score: 0

Accepted

time: 0ms

memory: 3656kb

input:

output:

result:

ok Correct (20 test cases)

Test #13:

score: 0

Accepted

time: 3ms

memory: 3652kb

input:

output:

result:

ok Correct (9 test cases)

Test #14:

score: 0

Accepted

time: 4ms

memory: 3736kb

input:

output:

result:

ok Correct (6 test cases)

Test #15:

score: 0

Accepted

time: 0ms

memory: 3588kb

input:

output:

result:

ok Correct (4 test cases)

Test #16:

score: 0

Accepted

time: 2ms

memory: 3720kb

input:

output:

result:

ok Correct (146 test cases)

Test #17:

score: 0

Accepted

time: 0ms

memory: 3596kb

input:

output:

result:

ok Correct (117 test cases)

Test #18:

score: 0

Accepted

time: 2ms

memory: 3596kb

input:

output:

result:

ok Correct (105 test cases)

Test #19:

score: 0

Accepted

time: 0ms

memory: 3724kb

input:

output:

result:

ok Correct (86 test cases)

Test #20:

score: 0

Accepted

time: 2ms

memory: 3652kb

input:

output:

result:

ok Correct (20 test cases)

Test #21:

score: 0

Accepted

time: 0ms

memory: 3656kb

input:

output:

result:

ok Correct (9 test cases)

Test #22:

score: 0

Accepted

time: 1ms

memory: 3668kb

input:

output:

result:

ok Correct (12 test cases)

Test #23:

score: 0

Accepted

time: 1ms

memory: 3668kb

input:

output:

result:

ok Correct (5 test cases)

Test #24:

score: 0

Accepted

time: 2ms

memory: 3660kb

input:

output:

result:

ok Correct (81 test cases)

Test #25:

score: 0

Accepted

time: 2ms

memory: 3656kb

input:

output:

result:

ok Correct (24 test cases)

Test #26:

score: 0

Accepted

time: 2ms

memory: 3656kb

input:

output:

result:

ok Correct (9 test cases)

Test #27:

score: 0

Accepted

time: 2ms

memory: 3572kb

input:

output:

result:

ok Correct (8 test cases)

Test #28:

score: 0

Accepted

time: 1ms

memory: 3660kb

input:

output:

result:

ok Correct (10 test cases)

Test #29:

score: 0

Accepted

time: 0ms

memory: 3600kb

input:

output:

result:

ok Correct (1 test case)

Test #30:

score: 0

Accepted

time: 2ms

memory: 3600kb

input:

output:

result:

ok Correct (2 test cases)

Test #31:

score: 0

Accepted

time: 3ms

memory: 3668kb

input:

output:

result:

ok Correct (4 test cases)

Test #32:

score: 0

Accepted

time: 0ms

memory: 3660kb

input:

output:

result:

ok Correct (1 test case)

Test #33:

score: 0

Accepted

time: 0ms

memory: 3736kb

input:

output:

? 1 2
? 3 4
! 1

result:

ok Correct (1 test case)

Test #34:

score: 0

Accepted

time: 0ms

memory: 3592kb

input:

output:

result:

ok Correct (1 test case)

Test #35:

score: 0

Accepted

time: 2ms

memory: 3652kb

input:

output:

result:

ok Correct (2 test cases)

Test #36:

score: 0

Accepted

time: 0ms

memory: 3588kb

input:

output:

result:

ok Correct (2 test cases)

Test #37:

score: 0

Accepted

time: 0ms

memory: 3652kb

input:

output:

result:

ok Correct (2 test cases)

Test #38:

score: 0

Accepted

time: 3ms

memory: 3660kb

input:

output:

result:

ok Correct (4 test cases)

Test #39:

score: 0

Accepted

time: 1ms

memory: 3612kb

input:

output:

result:

ok Correct (4 test cases)

Test #40:

score: 0

Accepted

time: 2ms

memory: 3656kb

input:

output:

result:

ok Correct (4 test cases)

Test #41:

score: 0

Accepted

time: 0ms

memory: 3600kb

input:

output:

result:

ok Correct (1 test case)

Extra Test:

score: 0

Extra Test Passed