Create bubble_sort.cpp

bubble sort/bubble_sort.cpp

@@ -0,0 +1,47 @@
+// Bubble sort in C++
+
+#include <iostream>
+using namespace std;
+
+// perform bubble sort
+void bubbleSort(int array[], int size) {
+
+  // loop to access each array element
+  for (int step = 0; step < size; ++step) {
+
+    // loop to compare array elements
+    for (int i = 0; i < size - step; ++i) {
+
+      // compare two adjacent elements
+      // change > to < to sort in descending order
+      if (array[i] > array[i + 1]) {
+
+        // swapping elements if elements
+        // are not in the intended order
+        int temp = array[i];
+        array[i] = array[i + 1];
+        array[i + 1] = temp;
+      }
+    }
+  }
+}
+
+// print array
+void printArray(int array[], int size) {
+  for (int i = 0; i < size; ++i) {
+    cout << "  " << array[i];
+  }
+  cout << "\n";
+}
+
+int main() {
+  int data[] = {-2, 45, 0, 11, -9};
+
+  // find array's length
+  int size = sizeof(data) / sizeof(data[0]);
+
+  bubbleSort(data, size);
+
+  cout << "Sorted Array in Ascending Order:\n";  
+  printArray(data, size);
+}