Parnic
93c9bc7d6f
There's room to optimize part 2, but I wanted to commit my original brute-force solution first.
48 lines
1.0 KiB
Go
48 lines
1.0 KiB
Go
package utilities
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import (
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"strconv"
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"strings"
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)
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func ParseIntcodeProgram(programStr string) []int64 {
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nums := strings.Split(programStr, ",")
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program := make([]int64, len(nums))
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for idx, num := range nums {
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iNum, err := strconv.ParseInt(num, 10, 64)
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if err != nil {
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panic(err)
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}
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program[idx] = iNum
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}
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return program
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}
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func RunIntcodeProgram(program []int64) {
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for instructionPointer := 0; instructionPointer < len(program); {
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opcode := program[instructionPointer]
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switch opcode {
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case 1:
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param1 := program[instructionPointer+1]
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param2 := program[instructionPointer+2]
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param3 := program[instructionPointer+3]
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program[param3] = program[param1] + program[param2]
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instructionPointer += 4
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break
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case 2:
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param1 := program[instructionPointer+1]
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param2 := program[instructionPointer+2]
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param3 := program[instructionPointer+3]
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program[param3] = program[param1] * program[param2]
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instructionPointer += 4
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break
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case 99:
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instructionPointer = len(program)
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break
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}
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}
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}
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