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ID	Problem	Submitter	Result	Time	Memory	Language	File size	Submit time	Judge time
#726406	#8239. Mysterious Tree	ChiTang	WA	8ms	3724kb	C++17	2.2kb	2024-11-08 23:54:43	2024-11-08 23:54:43

Judging History

你现在查看的是最新测评结果

[2024-11-08 23:54:43]
评测

测评结果：WA
用时：8ms
内存：3724kb

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[2024-11-08 23:54:43]
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;
	for(int i = 1; i <= n - 1; i += 2)
	{
		cout << "? " << i << ' ' << i + 1 << endl;
		cout.flush();

		int e;
		cin >> e;
		if(e == 1)
		{
			for(int j = 1; j <= n; j ++ )
			{
				if(j != i && (j != i + 1))
				{
					int x1;
					cout << "? " << i << ' ' << j << endl;
					cout.flush();
					cin >> x1;

					int x2;
					cout << "? " << i + 1 << ' ' << j << endl;
					cout.flush();
					cin >> x2;
					if(x1 == 1)
					{
						for(int k = j + 1; k <= n; k ++ )
						{
							if(k != i && (k != i + 1))
							{
								cout << "? " << i << ' ' << k << endl;
								cout.flush();
								int x11;
								cin >> x11;

								if(x11 == 1)
								{
									cout << "! 2" << endl;
									cout.flush();
									return ;
								}else{
									cout << "! 1" << endl;
									cout.flush();
									return ;
								}
							}
						}
					}
					if(x2 == 1)
					{
						for(int k = j + 1; k <= n; k ++ )
						{
							if(k != i && (k != i + 1))
							{
								cout << "? " << i + 1 << ' ' << k << endl;
								cout.flush();
								int x21;
								cin >> x21;

								if(x21 == 1)
								{
									cout << "! 2" << endl;
									cout.flush();
									return ;
								}else{
									cout << "! 1" << endl;
									cout.flush();
									return ;
								}
							}
						}
					}
					if(x1 == 0 && x2 == 0)
					{
						cout << "! 1" << endl;
						cout.flush();
						return ;
					}
				}
			}
		}
	}

	if(n & 1)
	{
		cout << "? " << 1 << ' ' << n << endl;
		cout.flush();
		int x; cin >> x;
		if(x == 0)
		{
			cout << "! 1" << endl;
			cout.flush();
			return ;
		}
		cout << "? " << 2 << ' ' << n << endl;
		cout.flush();
		cin >> x;
		if(x == 0)
		{
			cout << "! 1" << endl;
			cout.flush();
			return ;
		}else{
			cout << "! 2" << endl;
			cout.flush();
			return ;
		}
	}

	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

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100

Accepted

time: 1ms

memory: 3692kb

input:

output:

result:

ok Correct (2 test cases)

Test #2:

score: 0

Accepted

time: 0ms

memory: 3632kb

input:

output:

result:

ok Correct (87 test cases)

Test #3:

score: 0

Accepted

time: 4ms

memory: 3568kb

input:

output:

result:

ok Correct (135 test cases)

Test #4:

score: 0

Accepted

time: 0ms

memory: 3648kb

input:

output:

result:

ok Correct (136 test cases)

Test #5:

score: 0

Accepted

time: 0ms

memory: 3628kb

input:

output:

result:

ok Correct (5 test cases)

Test #6:

score: 0

Accepted

time: 2ms

memory: 3636kb

input:

output:

result:

ok Correct (7 test cases)

Test #7:

score: 0

Accepted

time: 0ms

memory: 3568kb

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: 6ms

memory: 3604kb

input:

output:

result:

ok Correct (99 test cases)

Test #10:

score: 0

Accepted

time: 6ms

memory: 3572kb

input:

output:

result:

ok Correct (84 test cases)

Test #11:

score: 0

Accepted

time: 6ms

memory: 3580kb

input:

output:

result:

ok Correct (23 test cases)

Test #12:

score: 0

Accepted

time: 0ms

memory: 3692kb

input:

output:

result:

ok Correct (20 test cases)

Test #13:

score: 0

Accepted

time: 0ms

memory: 3724kb

input:

output:

result:

ok Correct (9 test cases)

Test #14:

score: 0

Accepted

time: 3ms

memory: 3628kb

input:

output:

result:

ok Correct (6 test cases)

Test #15:

score: 0

Accepted

time: 0ms

memory: 3700kb

input:

output:

result:

ok Correct (4 test cases)

Test #16:

score: 0

Accepted

time: 0ms

memory: 3632kb

input:

output:

result:

ok Correct (146 test cases)

Test #17:

score: 0

Accepted

time: 3ms

memory: 3616kb

input:

output:

result:

ok Correct (117 test cases)

Test #18:

score: 0

Accepted

time: 0ms

memory: 3612kb

input:

output:

result:

ok Correct (105 test cases)

Test #19:

score: 0

Accepted

time: 0ms

memory: 3576kb

input:

output:

result:

ok Correct (86 test cases)

Test #20:

score: 0

Accepted

time: 0ms

memory: 3576kb

input:

output:

result:

ok Correct (20 test cases)

Test #21:

score: 0

Accepted

time: 1ms

memory: 3724kb

input:

output:

result:

ok Correct (9 test cases)

Test #22:

score: 0

Accepted

time: 0ms

memory: 3560kb

input:

output:

result:

ok Correct (12 test cases)

Test #23:

score: 0

Accepted

time: 1ms

memory: 3696kb

input:

output:

result:

ok Correct (5 test cases)

Test #24:

score: 0

Accepted

time: 0ms

memory: 3668kb

input:

output:

result:

ok Correct (81 test cases)

Test #25:

score: 0

Accepted

time: 2ms

memory: 3692kb

input:

output:

result:

ok Correct (24 test cases)

Test #26:

score: 0

Accepted

time: 1ms

memory: 3704kb

input:

output:

result:

ok Correct (9 test cases)

Test #27:

score: 0

Accepted

time: 1ms

memory: 3576kb

input:

output:

result:

ok Correct (8 test cases)

Test #28:

score: -100

Wrong Answer

time: 1ms

memory: 3632kb

input:

output:

result:

wrong answer Wrong prediction (test case 10)