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nick3499/shapeArea.js

Created April 28, 2018 01:41
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CodeFights: shapeArea(n) Challenge
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shapeArea.js
function shapeArea(n) {
init = 1;
return init + (n * ((n - 1) * 2));
}
console.log(shapeArea(4));
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  • 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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