Q.

You get an array of numbers, return the sum of all of the positives ones.

Example [1,-4,7,12] => 1 + 7 + 12 = 20

Note: if there is nothing to sum, the sum is default to 0.

A)

#include <stddef.h>

int positive_sum(const int *values, size_t count){
  int ret = 0;
  for (int i = 0;i < count;i++){
    if (values[i] > 0)
      ret += values[i];
  }
  return ret;
};