nick3499/shapeArea.js

Created April 28, 2018 01:41

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CodeFights: shapeArea(n) Challenge

Raw

shapeArea.js

	function shapeArea(n) {
	init = 1;
	return init + (n * ((n - 1) * 2));
	}
	console.log(shapeArea(4));

Author

nick3499 commented Apr 28, 2018

init = 1
n = 1 = 1 --> init + n * (n - 1) * 2 = 0
n = 2 = 5 --> init + n * (n - 1) * 2 = 2
n = 3 = 13 --> init + n * (n - 1) * 2 = 4
n = 4 = 25 --> init + n * (n - 1) * 2 = 6

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