C语言函数-求直角三角形的斜边hypotenuse

问题：

• Define a function 'hypotenuse' that calculates the length of the hypotenuse of a right triangle when the other two sides are given
• The function should take two argument of type double and return the typotenuse as a double (with 1 digit after the decimal point)

要求效果如下：

#include
#include
#include

/*求直角三角形的斜边 hypotenuse*/
double a;
double b;

double hypotenuse(double a, double b);

int main(void) {

	while (1) {
		printf("Enter the sides of the triangle:");
		scanf_s("%lf %lf", &a, &b);
		printf("Hypotenuse: %.1lf\n", hypotenuse(a,b));
	}

	system("pause");
	return 0;
}

double hypotenuse(double a, double b) {
	return sqrt(pow(a, 2) + pow(b, 2));
}