find the sum of all elements in an array in C

  int arraySum(int arr[], int n) 
  { 
   int sum = 0;
   for (int i = 0; i < n; i++) 
    sum += arr[i]; 
  
   return sum; 
  } 

This code finds the sum of all elements in an array. The function takes two parameters: an array of integers (arr[]) and the length of the array (n). An integer sum is initialized to 0, and a for loop is used to iterate over the array. During each iteration, the value of the current array element is added to the sum variable. After looping through all elements of the array, the sum variable contains the sum of all elements, which is then returned as the result.