🍻 Add excercise files

src/excercises/buckets.cc

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+
+# include <iostream>
+
+using namespace std;
+
+int main() {
+
+    int a = 1;
+    int b = 2;
+
+    int c = a;
+    a = b;
+    b = c;
+
+    cout << "A: " << a;
+    cout << "B: " << b;
+
+    return 0;
+}

src/excercises/calculator.cc

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+#include <iostream>
+
+using namespace std;
+
+int main(int argc, char *argv[]) {
+
+    char op;
+    float num1, num2;
+
+    cout << "Enter operator: +, -, *, /: ";
+    cin >> op;
+
+    cout << "Enter two operands: ";
+    cin >> num1 >> num2;
+
+    switch (op) {
+
+    case '+':
+        cout << num1 << " + " << num2 << " = " << num1 + num2;
+        break;
+    case '-':
+        cout << num1 << " - " << num2 << " = " << num1 - num2;
+        break;
+    case '*':
+        cout << num1 << " * " << num2 << " = " << num1 * num2;
+        break;
+    case '/':
+        cout << num1 << " / " << num2 << " = " << num1 / num2;
+        break;
+    default:
+        cout << "Operator '" << op << "' is not valid";
+        break;
+    }
+
+    return 0;
+}

src/excercises/constants.cc

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+
+# include <iostream>
+
+using namespace std;
+
+int main() {
+
+    const double pi = 3.14;
+    cout << pi;
+    return 0;
+}

src/excercises/hello_world.cc

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+// Your first program
+
+#include <iostream>
+
+int main(int argc, char *argv[]) {
+  std::cout << "Hello World!";
+  return 0;
+}

src/excercises/order_of_operators.cc

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+
+# include <iostream>
+
+using namespace std;
+
+int main() {
+
+    double x = 10;
+    double y = 5;
+    double z = (x + 10) / (3 * y);
+    cout << z;
+
+    return 0;
+}

src/excercises/outputting.cc

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+
+#include <iostream>
+#include <ostream>
+
+using namespace std;
+
+int main() {
+
+    double sale = 95000;
+    cout << "Sale: $" << sale << endl;
+
+    const double stateTaxRate = .04;
+    double stateTax = sale * stateTaxRate;
+    cout << "State tax: $" << stateTax << endl;
+
+    const double countyTaxRate = .02;
+    double countyTax = sale * countyTax;
+    cout << "County tax: $" << countyTax << endl;
+
+    double totalTax = stateTax + countyTax;
+    cout << "Total tax: $" << totalTax;
+
+    return 0;
+}