Volume of a Sphere

Easy

Read the radius of a sphere as a real number and print its volume using the formula volume = 4/3 pi r cubed, with pi taken as 3.14159. Print one line in the form volume = 4.19, the value rounded to two decimal places. If the radius cannot be read, print invalid input and return 1.

Success Criteria

Your code must pass 5 test case(s) to complete this exercise. 3 hint(s) are available if you need help.

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