10137:The Trip

TheTrip.cpp

/* 
* 10137    The Trip 
*/

#include <iostream> 

using namespace std;
int main()
{
    int no_of_trips;
    double sum;
    double negative_sum;
    double postive_sum;
    double avg;
    double diff;
    while(scanf("%d", &no_of_trips) != EOF)
    {
        if(no_of_trips == 0) break;
        double expenses[no_of_trips];
        sum = 0;
        for(int i = 0;
        i postive_sum) ? -negative_sum : postive_sum;
        printf("$%.2lf\n", avg);
        
    }
    return 0;
    
}