adding cs142 code

cs142/final/salaried.cpp

@@ -0,0 +1,13 @@
+#include "salaried.h"
+#include "employee.h"
+
+using namespace std;
+
+salaried::salaried(string name, double pay_rate, int hours, string type) : employee(name, pay_rate, hours, type) {}
+
+int salaried::get_salary() {
+    if(hours > 170/2) {
+        return pay_rate;
+    }
+    return 0;
+}