Parnic
93c9bc7d6f
There's room to optimize part 2, but I wanted to commit my original brute-force solution first.
71 lines
1.2 KiB
Go
71 lines
1.2 KiB
Go
package days
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import (
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"fmt"
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"parnic.com/aoc2019/utilities"
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)
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type Day02 struct {
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program []int64
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}
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func (d *Day02) Parse() {
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d.program = utilities.ParseIntcodeProgram(utilities.GetStringContents("02p"))
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}
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func (d Day02) Num() int {
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return 2
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}
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func (d *Day02) getProgramWithParams(param1, param2 int64) []int64 {
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program := make([]int64, len(d.program))
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copy(program, d.program)
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program[1] = param1
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program[2] = param2
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return program
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}
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func (d *Day02) Part1() string {
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program := d.getProgramWithParams(12, 2)
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utilities.RunIntcodeProgram(program)
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return fmt.Sprintf("Position 0 = %s%d%s", utilities.TextBold, program[0], utilities.TextReset)
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}
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func (d *Day02) Part2() string {
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sentinel := int64(19690720)
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var noun int64
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var verb int64
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found := false
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for noun = 0; noun <= 99; noun++ {
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for verb = 0; verb <= 99; verb++ {
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program := d.getProgramWithParams(noun, verb)
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utilities.RunIntcodeProgram(program)
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if program[0] == sentinel {
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found = true
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break
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}
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}
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if found {
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break
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}
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}
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if !found {
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panic("!found")
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}
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return fmt.Sprintf("%d created by noun=%d, verb=%d. 100 * noun + verb = %s%d%s",
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sentinel,
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noun,
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verb,
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utilities.TextBold,
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100*noun+verb,
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utilities.TextReset,
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)
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}
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