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let pos = 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folds = ["fold along x=655","fold along y=447","fold along x=327","fold along y=223","fold along x=163","fold along y=111","fold along x=81","fold along y=55","fold along x=40","fold along y=27","fold along y=13","fold along y=6"];// pos = [[6,10],[0,14],[9,10],[0,3],[10,4],[4,11],[6,0],[6,12],[4,1],[0,13],[10,12],[3,4],[3,0],[8,4],[1,10],[2,14],[8,10],[9,0]];// folds = ["fold along y=7","fold along x=5"]let dots;function setup() { createCanvas(400, 400); solve(); noLoop();}function solve() { dots = placeDots(); for(let f = 0; f < folds.length; f ++) { dots = fold(folds[f]); } print(Object.keys(dots).length); printDots(); // HECRZKPR}function printDots() { background(255); let v = Object.values(dots); for(let i = 0; i < v.length; i ++) { ellipse(v[i].x * 3, v[i].y * 3, 3, 3); }}function fold(cmd) { cmd = cmd.split(" ")[2]; let parts = cmd.split("="); let dir = parts[0]; let amt = parseInt(parts[1]); // print(dir, amt); let newDots = {}; let keys = Object.values(dots); for(let i = 0; i < keys.length; i ++) { let v; if(dir == "x") { v = foldX(amt, keys[i]); } else { v = foldY(amt, keys[i]); } if(v) { // print(keys[i], "->", v); newDots[v] = v; } } return newDots;}function placeDots() { let dots = {}; for(let i = 0; i < pos.length; i ++) { let v = pos[i]; let vec = createVector(v[0], v[1]); dots[vec] = vec; } return dots;}function foldY(y, v) { if(v.y < y) { return v; } else if(v.y == y) { return null; } return createVector(v.x, y - (v.y - y));}function foldX(x, v) { if(v.x < x) { return v; } else if(v.x == x) { return null; } return createVector(x - (v.x - x), v.y);}