/* Solve Quadratic Equation */

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

int main(void) {
	double a, b, c, d;

	printf("Solve Quadratic Equation ax^2+bx+c=0\n");

	printf("a=");
	scanf("%lf", &a);
	printf("b=");
	scanf("%lf", &b);
	printf("c=");
	scanf("%lf", &c);

	d = b * b - 4 * a * c;

	if (d > 0) {
		printf("Solution1=");
		printf("%f\n", (-b+sqrt(d))/(2*a));
		printf("Solution2=");
		printf("%f\n", (-b-sqrt(d))/(2*a));
	} else {
		if (d == 0) {
			printf("Solution=");
			printf("%f\n", -b/(2*a));
		} else {
			printf("No Solution.\n");
		}
	}

	return 0;
}