Create make_heap.md

Author: TVSSSRIPAD

algorithm/make_heap.md

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+# make_heap
+
+**Description :**  make_heap() is used to transform a given sequence into a heap.
+A heap is a data structure which points to highest( or lowest) element and making its access in O(1) time.
+
+**Example** :
+```cpp
+ int main() { 
+          int i;
+          // initializing vector; 
+          vector<int> vi = { 4, 6, 7, 9, 11, 4 }; 
+          
+          // using make_heap() to transform vector into 
+          // a max heap 
+          
+          make_heap(vi.begin(),vi.end()); 
+          
+          //checking if heap using  
+          // front() function 
+          cout << "The maximum element of heap is : "; 
+          cout << vi.front() << endl; 
+          
+          //printing the heap
+          for(i=0;i<vi.size();i++){
+          cout << vi[i] << endl;
+          }
+          
+          return 0; 
+      } 
+```
+**[Run Code](https://rextester.com/ZTZW85691)**