Restructure repo - mathematics/fundamentals

Author: derekhh

bus-station.cpp renamed to mathematics/fundamentals/bus-station.cpp

@@ -0,0 +1,26 @@
+//HalloweenParty.cpp
+//Algorithms - Warmup
+//Author: derekhh
+
+#include<iostream>
+using namespace std;
+
+int main()
+{
+	int t;
+	cin >> t;
+	while (t--)
+	{
+		int k;
+		cin >> k;
+		if (k % 2 == 1)
+		{
+			long long tmp = k / 2;
+			cout << tmp * (tmp + 1) << endl;
+		}
+		else
+		{
+			cout << (long long)k * k / 4 << endl;
+		}
+	}
+}