Create main.cpp

main.cpp

@@ -0,0 +1,21 @@
+#include <iostream>
+
+/* run this program using the console pauser or add your own getch, system("pause") or input loop */
+
+using namespace std;
+
+int main(int argc, char** argv) {
+
+	int n, sum = 0;
+
+    cout << "Enter a positive integer: ";
+    cin >> n;
+
+    for (int i = 1; i <= n; ++i) {
+        sum += i;
+    }
+
+    cout << "Sum = " << sum;
+
+	return 0;
+}