#include <stdio.h>
#include <math.h>

int main()
{					/*Start declaring variables*/
	float V; /* Voltage */
	float I; /* Current */
	float R; /* Resistance */
	float frequency; /* Frequency */
	float X_L; /* Reactance */
	float Z; /* Impedance */
	float L; /* Inductance*/
	const float pi = 3.14f;
	char c[10];
	int i,counter;
	int checktriangle(int num1, int num2, int num3)
{
	/* must be positive numbers */
	if (num1 <= 0 || num2 <= 0 || num3 <= 0)
		return 0;
	/* the sum of any two sides must be greater than the other one */
	if (num1 + num2 <= num3)
		return 0;
	if (num1 + num3 <= num2)
		return 0;
	if (num3 + num2 <= num1)
		return 0;
	return 1;
}

int checkscalene(int num1, int num2, int num3)
{
	if (num1 == num2 || num1 == num3 || num2 == num3)
		return 0;
	return 1;
}

int checkright(int num1, int num2, int num3)
{
	int sqr1 = num1 * num1;
	int sqr2 = num2 * num2;
	int sqr3 = num3 * num3;

	/* right triangle: a2 + b2 = c2 */
	if (sqr1 + sqr2 == sqr3)
		return 1;
	if (sqr1 + sqr3 == sqr2)
		return 1;
	if (sqr3 + sqr2 == sqr1)
		return 1;
	return 0;
}
	

	/* print the information */
	printf("This program will input Voltage, Current, Resistance, Frequency\n");
	printf("Then output Voltage, Current, Impedance, Reactance, Inductance\n");
	
	

	do
	{
		/* ask for input */
		printf("\nEnter Voltage, Current, Resistance, Frequency values\n");
		printf("Separated with a space then press Enter:\n");
		scanf("%f%f\%f%f", &V, &I, &R, &frequency);
		/* calculate the result */
		Z = (V/I);
		X_L = (float)pow((Z*Z-R*R),(1/2));
		L = X_L/(2*pi*frequency);
		/* output the result */
		printf("The result: %.02f %.02f %.02f %.02f %.02f\n",
			V, I, Z, X_L, L);
		/* ask the user to continue */
		printf("\nWould you like to enter another (y/n): ");
		scanf("%s", c);

	} while (c[0] == 'y' || c[0] == 'Y'); /* Promts user to enter either capital or small letter y*/
	

	
	
    printf("Type in your number of input(s)\n");
	scanf("%i", &counter);
	
	
	for (i=1; i<=counter; ++i)
	{
		printf("\nEnter Voltage, Current, Resistance, Frequency values\n");
		printf("Separated with a space then press Enter:\n");
		scanf("%f %f %f %f", &V, &I, &R, &frequency);
		/* calculate the result */
		Z = (V/I);
		X_L = (float)pow((Z*Z-R*R),(1/2));
		L = X_L/(2*pi*frequency);
		/* output the result */
		printf("The result: %.02f %.02f %.02f %.02f %.02f\n",
			V, I, Z, X_L, L);
        }

char reply[128];/*Character limitation*/
	int num1, num2, num3;
	int istriangle;
	int isscalene;
	int isright;
	do
	{
		/* ask the user to enter 3 integers */
		printf("Enter 3 integers separated with spaces then press ENTER: ");
		scanf("%d", &num1);
		scanf("%d", &num2);
		scanf("%d", &num3);

		istriangle = isscalene = isright = 0;

		/* check whether it is a triangle */
		istriangle = checktriangle(num1, num2, num3);
		if (istriangle)
		{
			/* check scalene triangle, right triangle */
			isscalene = checkscalene(num1, num2, num3);
			isright = checkright(num1, num2, num3);
		}

		/* print the result */
		if (istriangle)
			printf("[%d %d %d] is a triangle\n", num1, num2, num3);
		else
			printf("[%d %d %d] is not a triangle\n", num1, num2, num3);
		if (isscalene)
			printf("[%d %d %d] is a scalene triangle\n", num1, num2, num3);
		else
			printf("[%d %d %d] is not a scalene triangle\n", num1, num2, num3);
		if (isright)
			printf("[%d %d %d] is a right triangle\n", num1, num2, num3);
		else
			printf("[%d %d %d] is not a right triangle\n", num1, num2, num3);

		/* ask the user to enter another */
		printf("Would you like to enter another? (y/n): ");
		scanf("%s", reply);
	} while (reply[0] == 'y');
    printf("\n\n");
	system("pause");
	return 0;
}