data analyst • mediapart
Advent of code - Day 6
test = "3,4,3,1,2".split(",").map(x => parseInt(x))
function generation_loop(input, cycle){
let curr = Array.from(Array(10)).map((v,i) => input.filter(x => x == i).length)
Array.from(Array(cycle)).forEach((v,i,a) => {
curr[7] += curr[0]
curr[9] = curr[0]
curr.shift()
})
return curr
}
//generation_loop(test, 3)
generation_loop(test, 17)
d3.sum(generation_loop(test, 18))
d3.sum(generation_loop(test, 80))
d3.sum(generation_loop(input, 18))
d3.sum(generation_loop(input, 256))
d3.sum(generation_loop(input, 1000))
d3.sum(generation_loop(input, 10000))
test
input = `
1,3,4,1,5,2,1,1,1,1,5,1,5,1,1,1,1,3,1,1,1,1,1,1,1,2,1,5,1,1,1,1,1,4,4,1,1,4,1,1,2,3,1,5,1,4,1,2,4,1,1,1,1,1,1,1,1,2,5,3,3,5,1,1,1,1,4,1,1,3,1,1,1,2,3,4,1,1,5,1,1,1,1,1,2,1,3,1,3,1,2,5,1,1,1,1,5,1,5,5,1,1,1,1,3,4,4,4,1,5,1,1,4,4,1,1,1,1,3,1,1,1,1,1,1,3,2,1,4,1,1,4,1,5,5,1,2,2,1,5,4,2,1,1,5,1,5,1,3,1,1,1,1,1,4,1,2,1,1,5,1,1,4,1,4,5,3,5,5,1,2,1,1,1,1,1,3,5,1,2,1,2,1,3,1,1,1,1,1,4,5,4,1,3,3,1,1,1,1,1,1,1,1,1,5,1,1,1,5,1,1,4,1,5,2,4,1,1,1,2,1,1,4,4,1,2,1,1,1,1,5,3,1,1,1,1,4,1,4,1,1,1,1,1,1,3,1,1,2,1,1,1,1,1,2,1,1,1,1,1,1,1,2,1,1,1,1,1,1,4,1,1,1,1,1,1,1,1,1,1,1,1,1,1,2,1,1,2,5,1,2,1,1,1,1,1,1,1,1,1
`.split(",").map(x => parseInt(x))
Plot.plot({
marks: [
Plot.line(Array.from(Array(50)).map((v,i) => [i, d3.sum(generation_loop(input,i))]), {
x: d => d[0],
y: d => d[1]
})
]
})
generation_loop(input,0)
generation_loop(input,1)
generation_loop(input,3)
generation_loop(input,4)
generation_loop(input,5)
generation_loop(test, 9)
generation_loop(test, 15)
generation_loop(test, 18)
d3.sum(generation_loop(test, 8))
d3.sum(generation_loop(test, 16))
d3.sum(generation_loop(test, 18))
d3.sum(generation_loop(test, 24))
d3.sum(generation_loop(test, 64))
function generation_generalization(input, cycle){
let curr = Array.from(Array(9)).map((v,i) => input.filter(x => x == i).length)
//let curr = generation_loop(input, 2)
let n = (b) => Math.pow(2, Math.floor(b/8))
return n(cycle) * d3.sum(curr) //+ d3.sum(curr.filter((x,i) => i < mod(cycle,7)).map(a => a))
//return d3.map()
}
generation_loop(test, 1)
generation_loop(test, 2)
generation_loop(test, 3)
d3.sum(generation_loop(test, 7))
generation_generalization(test, 7)
generation_generalization(test, 8)
generation_generalization(test, 16)
generation_generalization(test, 18)
generation_generalization(test, 24)
generation_generalization(test, 64)
mod = (x,n) => ((x % n ) + n ) % n
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