adding cs142 code

cs142/lab02/timer.cpp

@@ -0,0 +1,30 @@
+#include <iostream>
+#include <cmath>
+
+using namespace std;
+    
+void calculate (int a) {
+
+    int hours, minutes, seconds;
+
+    hours = (a / 3600);
+    minutes = (a / 60) - (hours * 60);
+    seconds = a % 60;
+
+    cout << "hours: " << hours << " minutes: " << minutes << " seconds: " << seconds << endl;
+
+};
+
+
+int main() {
+
+    int time;
+    cout << "please enter a number of seconds" << endl;
+    cin >> time;
+    cout << time << endl;
+    cout << "absolute value of input " << abs (time) << endl;
+    calculate(time);
+    cout << "now with sqrt: " << endl;
+    calculate(sqrt(time));
+}
+