#include <iostream>

using namespace std;

const int pows[12] = {1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048};

int n, m;
bool mps[20][20];
int spc[20];

int qRead() {
	int x = 0;
	char ch = getchar();
	while (!isdigit(ch)) {
		ch = getchar();
	}
	while (isdigit(ch)) {
		x = x * 10 + ch - '0';
		ch = getchar();
	}
	return x;
}

int main() {
	ios::sync_with_stdio(false);
	n = qRead();
	m = qRead();
	for (int i = 1; i <= m; i++) {
		int x, y;
		x = qRead();
		y = qRead();
		mps[x][y] = true;
	}
	if (n == 1) {
		if (mps[1][1]) {
			cout << ' ';
		}
		else {
			cout << 'o';
		}
		return 0;
	}
	spc[0] = 1;
	spc[1] = 2;
	for (int i = 2; i < 20; i++) {
		spc[i] = spc[i - 1] * 2 + 1;
	}
	for (int i = 1; i < n; i++) {
		int oct = pows[i - 1];
		for (int j = 1; j <= oct; j++) {
			for (int k = 1; k <= spc[n - i]; k++) {
				cout << ' ';
			}
			if (mps[i - 1][(j + 1) / 2]) {
				mps[i][j] = true;
			}
			if (mps[i][j]) {
				cout << ' ';
			}
			else {
				cout << 'o';
			}
			for (int k = 1; k <= spc[n - i]; k++) {
				cout << ' ';
			}
			cout << ' ';
		}
		cout << endl;
		for (int j = 1; j <= spc[n - i - 1]; j++) {
			for (int nodes = 1; nodes <= oct; nodes++) {
				for (int k = j; k <= spc[n - i] - 1; k++) {
					cout << ' ';
				}
				if (mps[i][nodes] || mps[i + 1][nodes * 2 - 1]) {
					cout << ' ';
				}
				else {
					cout << '/';
				}
				for (int k = 1; k <= j - 1; k++) {
					cout << ' ';
				}
				cout << ' ';
				for (int k = 1; k <= j - 1; k++) {
					cout << ' ';
				}
				if (mps[i][nodes] || mps[i + 1][nodes * 2]) {
					cout << ' ';
				}
				else {
					cout << '\\';
				}
				for (int k = j; k <= spc[n - i] - 1; k++) {
					cout << ' ';
				}
				cout << ' ';
			}
			cout << endl;
		}

	}
	int ot = pows[n - 2];
	for (int i = 1; i <= ot; i++) {
		if (mps[n - 1][i]) {
			cout << "      ";
			continue;
		}
		if (mps[n][i * 2 - 1]) {
			cout << ' ';
		}
		else {
			cout << 'o';
		}
		cout << "   ";
		if (mps[n][i * 2]) {
			cout << ' ';
		}
		else {
			cout << 'o';
		}
		cout << ' ';
	}
	return 0;
}

主要是想找规律，看看每次输出多少空格。

记录在：https://www.luogu.com.cn/record/58317007

有什么建议吗？

谢谢！