Adds count repeated element solution

Author: omonimus1

README.md

@@ -96,6 +96,8 @@ My solutions to competitive programming problems in [Geeks for Geeks](https://au
 |Search in sorted array|[C++](c++/search-in-sorted-array.cpp)|
 |Insert at end of array|[C++](c++/array-insert-at-end.cpp)|
 |Equilibrium point|[C++](c++/equilibrium-point.cpp)|
+|Left index|[C++](c++/left_index.cpp)|
+|Count only repeated elements|[C++](c++/count-repeated-element.cpp)|
 |Remove duplicate elements|[C++](c++/remove-duplicate-elements.cpp)|
 |Search element in array|[C++](c++/search0an0element-in-an-array.cpp)|
 |Check if two arrays are equals|[C++](c++/check-if-two-arrays-are-equals.cpp)|
@@ -213,6 +215,7 @@ My solutions to competitive programming problems in [Geeks for Geeks](https://au
 |----------|:----------------:|
 | Display linked list|[C++](c++/display-linked-list.cpp)|
 |Sum of nodes|[C++](c++/sum-of-nodes.cpp)|
+|Linked list insert|[C++](c++/linked-list-insert.cpp)|
 |Sorted insert for circular linked list|[C++](c++/sorted-insert-for-circular-linked-list.cpp)|
 |Join two linked list|[C++](c++/join-two-linked-list.cpp)|
 |Delete tail of circular linked list|[C++](c++/delete-tail-of-circular-linked-list.cpp)|

c++/count-repeated-element.cpp

@@ -0,0 +1,47 @@
+// https://practice.geeksforgeeks.org/problems/count-only-repeated/0/?track=SPCF-Searching&batchId=154
+/*
+Given an array of positive integers, where elements are consecutive (sorted). 
+Also, there is a single element which is repeating X (any variable) number of times. Now, the task is to find the 
+element which is repeated and number of times it is repeated.
+*/
+
+#include <iostream>
+using namespace std;
+
+void solve_test()
+{
+    int size_list;
+    cin >> size_list;
+    int arr[size_list];
+    for(int i =0; i < size_list; i++)
+    {
+        cin >> arr[i];
+    }
+    
+    int counter = 0;
+    int element;
+    for(int i =0; i < size_list-1; i++)
+    {
+        if(arr[i] == arr[i+1])
+            element = arr[i];
+        while(arr[i] == arr[i+1])
+        {
+            counter +=1;
+            i+= 1;
+        }
+    }
+    counter+=1;
+    cout << element << " "<<counter<<endl;
+}
+
+int main()
+{
+    ios_base::sync_with_stdio(false);
+    cin.tie(NULL);
+    
+    long int t;
+    cin >> t;
+    while(t--)
+        solve_test();
+    return 0;
+}