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QOJ

ID	Problem	Submitter	Result	Time	Memory	Language	File size	Submit time	Judge time
#553769	#5575. Knight's Tour Redux	251Sec	AC ✓	8ms	3952kb	C++14	1.2kb	2024-09-08 19:59:54	2024-09-08 19:59:55

Judging History

你现在查看的是最新测评结果

[2024-09-08 19:59:55]
评测

测评结果：AC
用时：8ms
内存：3952kb

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[2024-09-08 19:59:54]
提交

answer

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
bool vx[100], vy[100];
pair<int, int> st[100];
pair<int, int> d[6] = {
	{ 0, 0 }, { 3, 1 }, { 4, 4 }, { 1, 5 }, { 2, 2 }, { 5, 3 }
};
int top;
void DFS(int x, int y, int off, int N) {
	st[++top] = { x, y };
	if (top == N) {
		for (int i = 1; i <= top; i++) {
			printf("%d %d\n", st[i].first + off, st[i].second + off);
		}
		exit(0);
	}
	vx[x] = vy[y] = true;
	int dx[] = { 3, 3, -3, -3, 1, 1, -1, -1 };
	int dy[] = { 1, -1, 1, -1, 3, -3, 3, -3 };
	for (int d = 0; d < 8; d++) {
		int nx = x + dx[d], ny = y + dy[d];
		if (nx < 0 || nx >= N || ny < 0 || ny >= N || vx[nx] || vy[ny]) continue;
		DFS(nx, ny, off, N);
	}
	vx[x] = vy[y] = false;
	top--;
}
void Sol(int n, int off) {
	if (n > 12) {
		for (int i = 0; i < 6; i++) printf("%d %d\n", d[i].first + off, d[i].second + off);
		Sol(n - 6, off + 6);
	}
	else DFS(0, 0, off, n);
}
int n;
int main() {
	scanf("%d", &n);
	if (n <= 4 && n != 1) return puts("IMPOSSIBLE"), 0;
	puts("POSSIBLE");
	if (n <= 6) {
		for (int i = 0; i < n; i++) {
			for (int j = 0; j < n; j++) {
				DFS(i, j, 1, n);
			}
		}
	}
	Sol(n, 1);
    return 0;
}

Source code, Language: C++14

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100

Accepted

time: 0ms

memory: 3876kb

input:

output:

POSSIBLE
1 1

result:

ok answer = 1

Test #2:

score: 0

Accepted

time: 0ms

memory: 3604kb

input:

output:

IMPOSSIBLE

result:

ok answer = 0

Test #3:

score: 0

Accepted

time: 0ms

memory: 3820kb

input:

output:

IMPOSSIBLE

result:

ok answer = 0

Test #4:

score: 0

Accepted

time: 0ms

memory: 3680kb

input:

output:

IMPOSSIBLE

result:

ok answer = 0

Test #5:

score: 0

Accepted

time: 0ms

memory: 3788kb

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: 3948kb

input:

output:

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

result:

ok answer = 1

Test #7:

score: 0

Accepted

time: 0ms

memory: 3872kb

input:

output:

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

result:

ok answer = 1

Test #8:

score: 0

Accepted

time: 0ms

memory: 3740kb

input:

output:

result:

ok answer = 1

Test #9:

score: 0

Accepted

time: 0ms

memory: 3860kb

input:

output:

result:

ok answer = 1

Test #10:

score: 0

Accepted

time: 0ms

memory: 3800kb

input:

output:

result:

ok answer = 1

Test #11:

score: 0

Accepted

time: 0ms

memory: 3792kb

input:

output:

result:

ok answer = 1

Test #12:

score: 0

Accepted

time: 0ms

memory: 3812kb

input:

output:

result:

ok answer = 1

Test #13:

score: 0

Accepted

time: 0ms

memory: 3872kb

input:

output:

result:

ok answer = 1

Test #14:

score: 0

Accepted

time: 0ms

memory: 3752kb

input:

output:

result:

ok answer = 1

Test #15:

score: 0

Accepted

time: 0ms

memory: 3812kb

input:

output:

result:

ok answer = 1

Test #16:

score: 0

Accepted

time: 0ms

memory: 3796kb

input:

output:

result:

ok answer = 1

Test #17:

score: 0

Accepted

time: 0ms

memory: 3948kb

input:

output:

result:

ok answer = 1

Test #18:

score: 0

Accepted

time: 0ms

memory: 3788kb

input:

output:

result:

ok answer = 1

Test #19:

score: 0

Accepted

time: 0ms

memory: 3948kb

input:

output:

result:

ok answer = 1

Test #20:

score: 0

Accepted

time: 0ms

memory: 3756kb

input:

output:

result:

ok answer = 1

Test #21:

score: 0

Accepted

time: 8ms

memory: 3812kb

input:

output:

result:

ok answer = 1

Test #22:

score: 0

Accepted

time: 8ms

memory: 3868kb

input:

output:

result:

ok answer = 1

Test #23:

score: 0

Accepted

time: 8ms

memory: 3868kb

input:

output:

result:

ok answer = 1

Test #24:

score: 0

Accepted

time: 5ms

memory: 3876kb

input:

output:

result:

ok answer = 1

Test #25:

score: 0

Accepted

time: 8ms

memory: 3808kb

input:

output:

result:

ok answer = 1

Test #26:

score: 0

Accepted

time: 8ms

memory: 3864kb

input:

output:

result:

ok answer = 1

Test #27:

score: 0

Accepted

time: 8ms

memory: 3952kb

input:

output:

result:

ok answer = 1

Test #28:

score: 0

Accepted

time: 8ms

memory: 3864kb

input:

output:

result:

ok answer = 1

Test #29:

score: 0

Accepted

time: 8ms

memory: 3876kb

input:

output:

result:

ok answer = 1

Test #30:

score: 0

Accepted

time: 8ms

memory: 3760kb

input:

output:

result:

ok answer = 1

Test #31:

score: 0

Accepted

time: 5ms

memory: 3944kb

input:

output:

result:

ok answer = 1

Test #32:

score: 0

Accepted

time: 3ms

memory: 3816kb

input:

output:

result:

ok answer = 1

Test #33:

score: 0

Accepted

time: 2ms

memory: 3804kb

input:

output:

result:

ok answer = 1

Test #34:

score: 0

Accepted

time: 3ms

memory: 3876kb

input:

output:

result:

ok answer = 1

Test #35:

score: 0

Accepted

time: 3ms

memory: 3868kb

input:

output:

result:

ok answer = 1

Test #36:

score: 0

Accepted

time: 3ms

memory: 3796kb

input:

output:

result:

ok answer = 1

Test #37:

score: 0

Accepted

time: 6ms

memory: 3876kb

input:

output:

result:

ok answer = 1

Test #38:

score: 0

Accepted

time: 7ms

memory: 3800kb

input:

output:

result:

ok answer = 1

Test #39:

score: 0

Accepted

time: 0ms

memory: 3952kb

input:

output:

result:

ok answer = 1

Test #40:

score: 0

Accepted

time: 5ms

memory: 3760kb

input:

output:

result:

ok answer = 1

Test #41:

score: 0

Accepted

time: 8ms

memory: 3876kb

input:

output:

result:

ok answer = 1

Test #42:

score: 0

Accepted

time: 6ms

memory: 3884kb

input:

output:

result:

ok answer = 1

Test #43:

score: 0

Accepted

time: 3ms

memory: 3812kb

input:

output:

result:

ok answer = 1

Test #44:

score: 0

Accepted

time: 5ms

memory: 3816kb

input:

output:

result:

ok answer = 1

Test #45:

score: 0

Accepted

time: 3ms

memory: 3788kb

input:

output:

result:

ok answer = 1

Test #46:

score: 0

Accepted

time: 4ms

memory: 3884kb

input:

output:

result:

ok answer = 1

Test #47:

score: 0

Accepted

time: 2ms

memory: 3876kb

input:

output:

result:

ok answer = 1

Test #48:

score: 0

Accepted

time: 0ms

memory: 3740kb

input:

output:

result:

ok answer = 1

Test #49:

score: 0

Accepted

time: 1ms

memory: 3884kb

input:

output:

result:

ok answer = 1

Test #50:

score: 0

Accepted

time: 6ms

memory: 3864kb

input:

output:

result:

ok answer = 1

Test #51:

score: 0

Accepted

time: 0ms

memory: 3948kb

input:

output:

result:

ok answer = 1

Test #52:

score: 0

Accepted

time: 6ms

memory: 3860kb

input:

output:

result:

ok answer = 1

Test #53:

score: 0

Accepted

time: 7ms

memory: 3876kb

input:

output:

result:

ok answer = 1

Test #54:

score: 0

Accepted

time: 6ms

memory: 3868kb

input:

output:

result:

ok answer = 1

Test #55:

score: 0

Accepted

time: 0ms

memory: 3872kb

input:

output:

result:

ok answer = 1

Test #56:

score: 0

Accepted

time: 5ms

memory: 3796kb

input:

output:

result:

ok answer = 1

Test #57:

score: 0

Accepted

time: 4ms

memory: 3888kb

input:

output:

result:

ok answer = 1

Test #58:

score: 0

Accepted

time: 6ms

memory: 3816kb

input:

output:

result:

ok answer = 1

Test #59:

score: 0

Accepted

time: 2ms

memory: 3876kb

input:

output:

result:

ok answer = 1

Test #60:

score: 0

Accepted

time: 1ms

memory: 3884kb

input:

output:

result:

ok answer = 1

Test #61:

score: 0

Accepted

time: 2ms

memory: 3752kb

input:

output:

result:

ok answer = 1

Test #62:

score: 0

Accepted

time: 3ms

memory: 3792kb

input:

output:

result:

ok answer = 1

Test #63:

score: 0

Accepted

time: 2ms

memory: 3904kb

input:

output:

result:

ok answer = 1

Test #64:

score: 0

Accepted

time: 0ms

memory: 3948kb

input:

output:

result:

ok answer = 1

Test #65:

score: 0

Accepted

time: 5ms

memory: 3756kb

input:

output:

result:

ok answer = 1

Test #66:

score: 0

Accepted

time: 4ms

memory: 3876kb

input:

output:

result:

ok answer = 1

Test #67:

score: 0

Accepted

time: 2ms

memory: 3752kb

input:

output:

result:

ok answer = 1

Test #68:

score: 0

Accepted

time: 3ms

memory: 3868kb

input:

output:

result:

ok answer = 1

Test #69:

score: 0

Accepted

time: 7ms

memory: 3808kb

input:

output:

result:

ok answer = 1

Test #70:

score: 0

Accepted

time: 8ms

memory: 3792kb

input:

output:

result:

ok answer = 1

Test #71:

score: 0

Accepted

time: 1ms

memory: 3860kb

input:

output:

result:

ok answer = 1