Add a loop over to this function that tracks how many times the sum functions is called. Also explain how the loop is working. int64_t sum(int64_t N, uint64_t A[]){    int64_t sum = 0;    uint64_t indx = A[0];     for (int64_t i = 0; i < N; i++){       sum += A[indx];       indx = A[indx];    }    return sum; }

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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Add a loop over to this function that tracks how many times the sum functions is called. Also explain how the loop is working.

int64_t sum(int64_t N, uint64_t A[]){
   int64_t sum = 0;
   uint64_t indx = A[0]; 
   for (int64_t i = 0; i < N; i++){
      sum += A[indx];
      indx = A[indx];
   }
   return sum;
}

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