1 files changed, 22 insertions, 0 deletions
diff --git a/17/day4/tuning.cpp b/17/day4/tuning.cpp
new file mode 100644
index 0000000..d2bddd9
--- /dev/null
+++ b/17/day4/tuning.cpp
@@ -0,0 +1,22 @@
+#include <bits/stdc++.h>
+using namespace std;
+ 
+int main() {
+	ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0);
+ 
+	int N;
+	cin >> N;
+	int ans = 1, cnt = 1;
+	for (int i = 2; i < N; ++i) {
+		if (cnt) {
+			cout << ans << ' ' << i << endl;
+			string s; cin >> s;
+			s[0] == 'S' ? ++cnt : --cnt;
+		}
+		else {
+			ans = i;
+			++cnt;
+		}
+	}
+	cout << (cnt ? ans : N) << endl;
+}
+\ No newline at end of file