Road to Genius: advanced #45

Each day I solve several coding challenges and puzzles from Codr’s ranked mode. The goal is to reach genius rank, along the way I explain how I solve them. You do not need any programming background to get started, and you will learn a ton of new and interesting things as you go.

Each day I solve several coding challenges and puzzles from Codr’s ranked mode. The goal is to reach genius rank, along the way I explain how I solve them. You do not need any programming background to get started, and you will learn a ton of new and interesting things as you go.

function cross(a, b) {
  return [a[1] * b[2] - a[2] * b[1], a[2] * 💚[0] - a[0] * b[2], a[0] * b[🐼] - a[1] * b[0]];
}
let out = cross([6, 🍎, 2], [8, 2, 6]);
let 💎 = out[0];
A = Math.abs(A);
// 💎 = ? (identifier)
// 🍎 = ? (number)
// 🐼 = ? (number)
// 💚 = ? (identifier)
// such that A = 8 (number)

Today’s challenge is, wait… we’ve encountered similar code before in episode 31 (https://dev.to/codr/road-to-genius-advanced-31-7hh). It’s again the cross production function but with different bugs to fix this time.

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