Addition of insertion sort and name added to contributers.md

Contributors.html

@@ -133,7 +133,8 @@ <h1 class="animated rubberBand delay-4s">Contributors</h1>
 <a class="box-item" href="https://github.com/rajneeshk94"><span>Rajneesh Khare</span></a>
 <a class="box-item" href="https://github.com/milos5593"><span>Milos Vujinic</span></a>
 <a class="box-item" href="https://github.com/senshiii"><span>Sayan Das</span></a>
-<a class="box-item" href="https://github.com/Shagufta08"><span>Shagufta Iqbal</span></a>		
+<a class="box-item" href="https://github.com/Shagufta08"><span>Shagufta Iqbal</span></a>
+<a class="box-item" href="https://github.com/ishgary"><span>Ishant Garg</span></a>		
 <!--
         Add here
         format : <a class="box-item" href="https://github.com/<your-username>"><span>Your Name</span></a>

I-Sort.cpp

@@ -0,0 +1,34 @@
+#include<iostream>
+using namespace std;
+void display(int *array, int size) {
+   for(int i = 0; i<size; i++)
+      cout << array[i] << " ";
+   cout << endl;
+}
+void insertionSort(int *array, int size) {
+   int key, j;
+   for(int i = 1; i<size; i++) {
+      key = array[i];//take value
+      j = i;
+      while(j > 0 && array[j-1]>key) {
+         array[j] = array[j-1];
+         j--;
+      }
+      array[j] = key;   //insert in right place
+   }
+}
+int main() {
+   int n;
+   cout << "Enter the number of elements: ";
+   cin >> n;
+   int arr[n];    //create an array with given number of elements
+   cout << "Enter elements:" << endl;
+   for(int i = 0; i<n; i++) {
+      cin >> arr[i];
+   }
+   cout << "Array before Sorting: ";
+   display(arr, n);
+   insertionSort(arr, n);
+   cout << "Array after Sorting: ";
+   display(arr, n);
+}