adding cs142 code

cs142/lab02/Makefile

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+CPPFLAGS=-Wall -g -std=c++0x
+
+all: timer temperature binary
+
+binary: binary.cpp
+temperature: temperature.cpp
+timer: timer.cpp
+
+clean:
+	rm -rv timer temperature binary

cs142/lab02/binary.cpp

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+#include <iostream>
+#include <vector>
+
+using namespace std;
+
+int main() {
+
+    int value;
+    int first, second, third, fourth, fifth;
+    vector<int> final;
+
+    cout << "please insert your number between 0 and 31" << endl;
+    cin >> value;
+    int prin = value%2;
+    value = value/2;
+    if(prin >=1)
+        first = 1;
+    else
+       first = 0; 
+    final.push_back(first);
+    prin = value%2;
+    value = value/2;
+    if(prin >=1)
+        second = 1;
+    else
+        second = 0;
+    final.push_back(second);
+    prin = value%2;
+    value = value/2;
+    if(prin >= 1)
+        third = 1;
+    else
+        third = 0;
+    final.push_back(third);
+    prin = value%2;
+    value = value/2;
+    if(prin >= 1)
+        fourth = 1;
+    else
+        fourth = 0;
+    final.push_back(fourth);
+    prin = value%2;
+    value = value/2;
+    if(prin >= 1)
+        fifth = 1;
+    else
+        fifth = 0;
+    final.push_back(fifth);
+
+    cout <<fifth<<fourth<<third<<second<<first << endl;
+  //  for(unsigned int i = 0 ; i<final.size();i++) {
+
+   //     cout << final[i];
+  //  }
+    cout << "\n";
+
+}

cs142/lab02/temperature.cpp

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+#include <iostream>
+
+using namespace std;
+
+int main() {
+
+    double temperature;
+    cout << "please enter a temperature in degress Fahrenheit:" << endl;
+    cin >> temperature;
+    double celsius = (temperature-32) * 5/9;
+    cout << "This is Fahrenheit as an int:" << endl;
+    cout << (int) temperature << endl;
+    cout << "This is Celsius as a double:" << endl;
+    cout << celsius << endl;
+    cout << "This is Celsius as an int:" << endl;
+    cout << (int) celsius << endl;
+
+
+
+}

cs142/lab02/timer.cpp

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+#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));
+}
+