added bubblesort

C++/bubbleSort.cpp

@@ -0,0 +1,30 @@
+#include <bits/stdc++.h>
+using namespace std;
+void bubbleSort(int arr[], int size) {
+  for (int step = 0; step < size; ++step) {
+    for (int i = 0; i < size - step; ++i) {
+      if (arr[i] > arr[i + 1]) {
+        int temp = arr[i];
+        arr[i] = arr[i + 1];
+        arr[i + 1] = temp;
+      }
+    }
+  }
+}
+
+void printArray(int arr[], int size)
+{
+    int i;
+    for (i = 0; i < size; i++)
+        cout << " " << arr[i];
+}
+
+int main()
+{
+    int arr[] = { 64, 34, 25, 12, 22, 11, 90 };
+    int N = sizeof(arr) / sizeof(arr[0]);
+    bubbleSort(arr, N);
+    cout << "Sorted array: \n";
+    printArray(arr, N);
+    return 0;
+}