On to functions.

This is an exercise to learn how to use functions.

WSQ-s/onto.cpp

@@ -0,0 +1,34 @@
+#include <iostream>
+using namespace std;
+
+int uno, dos;
+
+int suma (int a, int b)
+{
+  return (a)+(b);
+}
+int resta (int a, int b)
+{
+  return (a)+(b);
+}
+int div (int a, int b)
+{
+  return (a)/(b);
+}
+int mult (int a, int b)
+{
+  return (a)*(b);
+}
+
+int main()
+{
+  cout << "Ingrese dos números enteros positivos" <<endl;
+  cout << "Número 1" << endl;
+  cin>> uno;
+  cout << "Número 2" << endl;
+  cin>> dos;
+  if (uno < 0 || dos < 0)
+  cout <<"Sólo números enteros positivos.";
+cout<< suma (uno, dos);
+  return 0;
+}