Created
December 3, 2018 17:58
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| part1 () { | |
| let rows = _.split(this.input, '\n') | |
| let grid = _.times(MAX_DIM * MAX_DIM, _.constant(0)) | |
| _.each(rows, v => { | |
| let [x, y, w, h] = _ | |
| .chain(v.match(/#\d+ @ (\d+),(\d+): (\d+)x(\d+)/)) // separate parts | |
| .tail() // discard full match | |
| .map(Number) // cast to numbers | |
| .value() // destructure to variables | |
| let origin = x + y * MAX_DIM // top left corner of claim | |
| _.each(_.range(h), hh => { | |
| _.each(_.range(w), ww => { | |
| let point = origin + ww + hh * MAX_DIM // unique point "index" in grid | |
| grid[point]++ // tally the claim | |
| }) | |
| }) | |
| }) | |
| let claims = _.countBy(grid, v => v > 1 ? 'over' : 'good') | |
| this.solution1 = claims.over | |
| } |
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