added bubble sort algorithm

Author: caffeine-soul

bubble.cpp

@@ -0,0 +1,42 @@
+#include <iostream>
+using namespace std;
+ 
+  
+void swap(int *xp, int *yp) 
+{ 
+    int temp = *xp; 
+    *xp = *yp; 
+    *yp = temp; 
+} 
+  
+// A function to implement bubble sort 
+void bubbleSort(int arr[], int n) 
+{ 
+   int i, j; 
+   for (i = 0; i < n-1; i++)       
+  
+       // Last i elements are already in place    
+       for (j = 0; j < n-i-1; j++)  
+           if (arr[j] > arr[j+1]) 
+              swap(&arr[j], &arr[j+1]); 
+} 
+  
+/* Function to print an array */
+void printArray(int arr[], int size) 
+{ 
+    int i; 
+    for (i=0; i < size; i++) 
+        cout<<arr[i]; 
+  cout<<"\n"; 
+} 
+  
+// Driver program to test above functions 
+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; 
+}