/* Quarter-Mile Race

Write a complete C program that calculates the estimated time (ET) 
for two cars to finish a quarter-mile race. The estimated time can 
be calculated using the weight of the car in pounds and the cars 
horsepower with the formula:

ET = (Weight/HP)^(1/3)*(233/40)
 
 
============= START OF SAMPLE RUN =======================
Enter weight and HP of car 1:  2996 225
Enter weight and HP of car 2:  2745 190

Car 1 ET: 13.806
Car 2 ET: 14.187
=============  END OF SAMPLE RUN  ======================= 

 
============= START OF SAMPLE RUN =======================
Enter weight and HP of car 1:  2900 550
Enter weight and HP of car 2:  3100 650

Car 1 ET: 10.139
Car 2 ET: 9.805
=============  END OF SAMPLE RUN  ======================= 

*/

#include <stdio.h>
#include <stdlib.h>
#include <math.h> // Used for pow

int main(int argc, char* argv[])
{
	// Declare variables
	double weight, hp, carOneET, carTwoET;
	
	// Gather information and calculate ETs
	printf("Enter weight and HP of car 1:  ");
	scanf("%lf%lf", &weight, &hp);
	carOneET = (pow(weight/hp, 1.0/3.0))*233/40;
	
	printf("Enter weight and HP of car 2:  ");
	scanf("%lf%lf", &weight, &hp);
	carTwoET = (pow(weight/hp, 1.0/3.0))*233/40;
	
	// Print results
	printf("\n");
	printf("Car 1 ET: %.3lf\n", carOneET);
	printf("Car 2 ET: %.3lf\n", carTwoET);
	
	system("pause");
	return 0;
}