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ID	Problem	Submitter	Result	Time	Memory	Language	File size	Submit time	Judge time
#343227	#5575. Knight's Tour Redux	iee	AC ✓	11ms	4352kb	C++23	1.0kb	2024-03-02 09:00:49	2024-03-02 09:00:50

Judging History

你现在查看的是最新测评结果

[2024-03-02 09:00:50]
评测

测评结果：AC
用时：11ms
内存：4352kb

查看

[2024-03-02 09:00:49]
提交

answer

#include <bits/stdc++.h>
using namespace std;
constexpr array<array<int, 2>, 8> dir{{{1, 3}, {1, -3}, {-1, 3}, {-1, -3}, {3, 1}, {3, -1}, {-3, 1}, {-3, -1}}};
int n;
int t;
vector<pair<int, int>> stk;
void put(int x, int y) {
	stk.push_back({x + t, y + t});
}
constexpr int N = 16;
bool vx[N], vy[N];
void dfs(int x, int y, int dep) {
	if (vx[x] || vy[y]) return;
	put(x, y);
	vx[x] = vy[y] = 1;
	if (dep == n) {
		cout << "POSSIBLE" << "\n";
		for (auto [x, y] : stk) {
			cout << x << " " << y << "\n";
		}
		exit(0);
	}
	for (auto [dx, dy] : dir) {
		int nx = x + dx, ny = y + dy;
		if (nx < 1 || nx > n || ny < 1 || ny > n) continue;
		dfs(nx, ny, dep + 1);
	}
	stk.pop_back();
	vx[x] = vy[y] = 0;
}
int main() {
	cin >> n;
	while (n >= 14) {
		put(1, 1);
		put(2, 4);
		put(3, 7);
		put(6, 8);
		put(5, 5);
		put(4, 2);
		put(7, 3);
		put(8, 6);
		t += 8;
		n -= 8;
	}
	for (int i = 1; i <= n; i++) {
		for (int j = 1; j <= n; j++) {
			dfs(i, j, 1);
		}
	}
	cout << "IMPOSSIBLE" << "\n";
	return 0;
}

Source code, Language: C++23

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100

Accepted

time: 0ms

memory: 3656kb

input:

output:

POSSIBLE
1 1

result:

ok answer = 1

Test #2:

score: 0

Accepted

time: 0ms

memory: 3656kb

input:

output:

IMPOSSIBLE

result:

ok answer = 0

Test #3:

score: 0

Accepted

time: 0ms

memory: 3716kb

input:

output:

IMPOSSIBLE

result:

ok answer = 0

Test #4:

score: 0

Accepted

time: 0ms

memory: 3716kb

input:

output:

IMPOSSIBLE

result:

ok answer = 0

Test #5:

score: 0

Accepted

time: 0ms

memory: 3736kb

input:

output:

POSSIBLE
1 3
4 4
5 1
2 2
3 5

result:

ok answer = 1

Test #6:

score: 0

Accepted

time: 0ms

memory: 3592kb

input:

output:

POSSIBLE
1 1
2 4
5 5
6 2
3 3
4 6

result:

ok answer = 1

Test #7:

score: 0

Accepted

time: 0ms

memory: 3600kb

input:

output:

POSSIBLE
1 1
2 4
3 7
6 6
7 3
4 2
5 5

result:

ok answer = 1

Test #8:

score: 0

Accepted

time: 0ms

memory: 3660kb

input:

output:

result:

ok answer = 1

Test #9:

score: 0

Accepted

time: 0ms

memory: 3660kb

input:

output:

result:

ok answer = 1

Test #10:

score: 0

Accepted

time: 0ms

memory: 3660kb

input:

output:

result:

ok answer = 1

Test #11:

score: 0

Accepted

time: 0ms

memory: 3656kb

input:

output:

result:

ok answer = 1

Test #12:

score: 0

Accepted

time: 0ms

memory: 3740kb

input:

output:

result:

ok answer = 1

Test #13:

score: 0

Accepted

time: 0ms

memory: 3604kb

input:

output:

result:

ok answer = 1

Test #14:

score: 0

Accepted

time: 0ms

memory: 3664kb

input:

output:

result:

ok answer = 1

Test #15:

score: 0

Accepted

time: 0ms

memory: 3740kb

input:

output:

result:

ok answer = 1

Test #16:

score: 0

Accepted

time: 0ms

memory: 3604kb

input:

output:

result:

ok answer = 1

Test #17:

score: 0

Accepted

time: 0ms

memory: 3592kb

input:

output:

result:

ok answer = 1

Test #18:

score: 0

Accepted

time: 0ms

memory: 3596kb

input:

output:

result:

ok answer = 1

Test #19:

score: 0

Accepted

time: 0ms

memory: 3660kb

input:

output:

result:

ok answer = 1

Test #20:

score: 0

Accepted

time: 0ms

memory: 3720kb

input:

output:

result:

ok answer = 1

Test #21:

score: 0

Accepted

time: 11ms

memory: 4264kb

input:

output:

result:

ok answer = 1

Test #22:

score: 0

Accepted

time: 11ms

memory: 4140kb

input:

output:

result:

ok answer = 1

Test #23:

score: 0

Accepted

time: 11ms

memory: 4312kb

input:

output:

result:

ok answer = 1

Test #24:

score: 0

Accepted

time: 7ms

memory: 4196kb

input:

output:

result:

ok answer = 1

Test #25:

score: 0

Accepted

time: 7ms

memory: 4240kb

input:

output:

result:

ok answer = 1

Test #26:

score: 0

Accepted

time: 7ms

memory: 4196kb

input:

output:

result:

ok answer = 1

Test #27:

score: 0

Accepted

time: 11ms

memory: 4352kb

input:

output:

result:

ok answer = 1

Test #28:

score: 0

Accepted

time: 11ms

memory: 4260kb

input:

output:

result:

ok answer = 1

Test #29:

score: 0

Accepted

time: 11ms

memory: 4232kb

input:

output:

result:

ok answer = 1

Test #30:

score: 0

Accepted

time: 11ms

memory: 4276kb

input:

output:

result:

ok answer = 1

Test #31:

score: 0

Accepted

time: 11ms

memory: 4308kb

input:

output:

result:

ok answer = 1

Test #32:

score: 0

Accepted

time: 8ms

memory: 4240kb

input:

output:

result:

ok answer = 1

Test #33:

score: 0

Accepted

time: 0ms

memory: 3784kb

input:

output:

result:

ok answer = 1

Test #34:

score: 0

Accepted

time: 5ms

memory: 3804kb

input:

output:

result:

ok answer = 1

Test #35:

score: 0

Accepted

time: 0ms

memory: 3788kb

input:

output:

result:

ok answer = 1

Test #36:

score: 0

Accepted

time: 4ms

memory: 3808kb

input:

output:

result:

ok answer = 1

Test #37:

score: 0

Accepted

time: 4ms

memory: 4224kb

input:

output:

result:

ok answer = 1

Test #38:

score: 0

Accepted

time: 10ms

memory: 4180kb

input:

output:

result:

ok answer = 1

Test #39:

score: 0

Accepted

time: 0ms

memory: 3648kb

input:

output:

result:

ok answer = 1

Test #40:

score: 0

Accepted

time: 6ms

memory: 3956kb

input:

output:

result:

ok answer = 1

Test #41:

score: 0

Accepted

time: 10ms

memory: 4284kb

input:

output:

result:

ok answer = 1

Test #42:

score: 0

Accepted

time: 8ms

memory: 4240kb

input:

output:

result:

ok answer = 1

Test #43:

score: 0

Accepted

time: 6ms

memory: 4132kb

input:

output:

result:

ok answer = 1

Test #44:

score: 0

Accepted

time: 7ms

memory: 3920kb

input:

output:

result:

ok answer = 1

Test #45:

score: 0

Accepted

time: 4ms

memory: 3784kb

input:

output:

result:

ok answer = 1

Test #46:

score: 0

Accepted

time: 6ms

memory: 3836kb

input:

output:

result:

ok answer = 1

Test #47:

score: 0

Accepted

time: 0ms

memory: 3788kb

input:

output:

result:

ok answer = 1

Test #48:

score: 0

Accepted

time: 6ms

memory: 4348kb

input:

output:

result:

ok answer = 1

Test #49:

score: 0

Accepted

time: 1ms

memory: 3768kb

input:

output:

result:

ok answer = 1

Test #50:

score: 0

Accepted

time: 4ms

memory: 4208kb

input:

output:

result:

ok answer = 1

Test #51:

score: 0

Accepted

time: 7ms

memory: 3820kb

input:

output:

result:

ok answer = 1

Test #52:

score: 0

Accepted

time: 8ms

memory: 4168kb

input:

output:

result:

ok answer = 1

Test #53:

score: 0

Accepted

time: 3ms

memory: 4284kb

input:

output:

result:

ok answer = 1

Test #54:

score: 0

Accepted

time: 8ms

memory: 4232kb

input:

output:

result:

ok answer = 1

Test #55:

score: 0

Accepted

time: 0ms

memory: 3784kb

input:

output:

result:

ok answer = 1

Test #56:

score: 0

Accepted

time: 6ms

memory: 3808kb

input:

output:

result:

ok answer = 1

Test #57:

score: 0

Accepted

time: 5ms

memory: 3840kb

input:

output:

result:

ok answer = 1

Test #58:

score: 0

Accepted

time: 8ms

memory: 4264kb

input:

output:

result:

ok answer = 1

Test #59:

score: 0

Accepted

time: 3ms

memory: 3796kb

input:

output:

result:

ok answer = 1

Test #60:

score: 0

Accepted

time: 2ms

memory: 3784kb

input:

output:

result:

ok answer = 1

Test #61:

score: 0

Accepted

time: 5ms

memory: 3892kb

input:

output:

result:

ok answer = 1

Test #62:

score: 0

Accepted

time: 2ms

memory: 3792kb

input:

output:

result:

ok answer = 1

Test #63:

score: 0

Accepted

time: 6ms

memory: 3848kb

input:

output:

result:

ok answer = 1

Test #64:

score: 0

Accepted

time: 3ms

memory: 3704kb

input:

output:

result:

ok answer = 1

Test #65:

score: 0

Accepted

time: 3ms

memory: 3960kb

input:

output:

result:

ok answer = 1

Test #66:

score: 0

Accepted

time: 6ms

memory: 3924kb

input:

output:

result:

ok answer = 1

Test #67:

score: 0

Accepted

time: 3ms

memory: 3732kb

input:

output:

result:

ok answer = 1

Test #68:

score: 0

Accepted

time: 4ms

memory: 3820kb

input:

output:

result:

ok answer = 1

Test #69:

score: 0

Accepted

time: 10ms

memory: 4244kb

input:

output:

result:

ok answer = 1

Test #70:

score: 0

Accepted

time: 7ms

memory: 4220kb

input:

output:

result:

ok answer = 1

Test #71:

score: 0

Accepted

time: 1ms

memory: 3712kb

input:

output:

result:

ok answer = 1