#include <iostream>

struct weather
{
  string date;
  int high;
  int low;
};

int find_pos_of_smallest (weather data, int start_pos, int end_pos);

int main()
{
    int days = 365;
    weather data[days];
    /* Do stuff to initialize data */
    cout<<find_pos_of_smallest(data, 0, days)<<endl;
    return 0;  //no error so return a zero
}//end of program

int find_pos_of_smallest (weather data, int start_pos, int end_pos)
{
    /* ... */
    return 0;
}