Solved addPrimes problem in C++ and added new problem addFibonacci

src/addFibonacci.js

@@ -0,0 +1,2 @@
+//Add all the numbers in an array which are Fibonacci numbers
+//To be implemented

src/addPrime.cpp

@@ -0,0 +1,30 @@
+//Add all the numbers in an array which are prime numbers
+
+#include<iostream>
+using namespace std;
+
+int isPrime(int a){
+    bool flag=true;
+    for(int i = 2; i <= a / 2; i++) {
+       if(a % i == 0) {
+          flag = false;
+          break;
+       }
+    }
+    return flag;
+}
+
+int main(){
+    int n = 10;
+    int arr[n];
+
+    int sum = 0;
+
+    for(int i =0; i<n; i++){
+        if(isPrime(arr[i]))
+            sum += arr[i];
+    }
+
+    cout<<"Sum of Primes: "<<sum<<endl;
+    return 0;
+}