e1.cpp

e1.cpp

@@ -0,0 +1,17 @@
+
+#include <iostream>
+#include <algorithm>
+
+using namespace std;
+
+int main()
+{
+	int n;
+	cin >> n;
+	if (n % 2 == 0)
+		cout << n << " is even" << endl;
+	else
+		cout << n << " is odd" << endl;
+
+	return 0;
+}

e2.cpp

@@ -0,0 +1,15 @@
+#include <iostream>
+
+	using namespace std;
+
+	int main()
+	{
+		int n;
+		cin >> n;
+		if (n < 0)
+			cout << n << " is negative" << endl;
+		else if (n > 0)
+			cout << n << " is positive" << endl;
+
+		return 0;
+	}

e3.cpp

@@ -0,0 +1 @@
+

e9.cpp

@@ -0,0 +1 @@
+