ABC 252, in process of making c, got idea but got sidetracked

atcoder/beginner_contests/252/f.cpp

@@ -0,0 +1,25 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+void test_case(int tc){
+
+}
+
+
+
+int main(){
+    ios::sync_with_stdio(0);
+    cin.tie(0);
+
+    int t;
+    cin >> t;
+
+    for(int tc = 1; tc <= t; ++tc){
+        test_case(tc);
+    }
+
+    cout << flush;
+
+    return 0;
+}