Question

How to sum array values in a given range with C++

Answer 1

#include <iostream>

int sumRangeValues(int arr[], int size, int from, int to) {
    int sum = 0;
    for (int i = 0; i < size; i++) {
        if (i >= from && i <= to)
            sum += arr[i];
    }
    return sum;
}
    
int main()
{
    int arr[] = { 3, 6, 0, 9, 1, 2, 8, 7, 4, 17 };
    int size = sizeof(arr) / sizeof(arr[0]);
    int from = 3, to = 7;
       
    std::cout << sumRangeValues(arr, size, from, to);
   
    return 0;
}
   
   
   
   
      
/*
run:
      
27
      
*/

 

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