1 files changed, 29 insertions, 0 deletions
diff --git a/20/day2/reopen.cpp b/20/day2/reopen.cpp
new file mode 100644
index 0000000..0d64e84
--- /dev/null
+++ b/20/day2/reopen.cpp
@@ -0,0 +1,29 @@
+#include <bits/stdc++.h>
+#define f first
+#define s second
+using namespace std;
+typedef long long ll;
+typedef pair<int, int> ii;
+
+int main() {
+	ios_base::sync_with_stdio(0), cin.tie(0);
+
+	int n, a, b;
+	string r;
+	cin >> n >> a >> b >> r;
+	
+	if (r == "1/2") {
+		for (int i = 0; i < n / 2; ++i) cout << b * i << ' ' << 0 << '\n';
+		for (int i = n / 2; i < n; ++i) cout << b * i + a << ' ' << 0 << '\n';
+	}
+	else {
+		int d = a * (b + 1) / 2 % b;
+		for (int i = 0; i < n; ++i) {
+			int x = d + (i / 4) * b, y = 0;
+			if (i % 2 == 1) swap(x, y);
+			if (i % 4 == 2) x = -x;
+			if (i % 4 == 3) y = -y;
+			cout << x + 500000000 << ' ' << y + 500000000 << '\n';
+		}
+	}
+}
+\ No newline at end of file