Add day 2 solution.

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Anna Rose Wiggins 2018-12-02 00:40:11 -05:00
parent 16b30b2a75
commit 3ca1a1068b
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3 changed files with 98 additions and 0 deletions

32
2018/day02-2.go Normal file
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@ -0,0 +1,32 @@
package main
import (
"fmt"
"internal/util"
)
func main() {
ids := util.ReadInput()
for _, box1 := range ids {
for _, box2 := range ids {
diffIndex := -1 // diffIndex doubles as the letter to remove and a 'found' flag
for i := range box1 {
if box1[i] != box2[i] {
if diffIndex != -1 {
// If we reach here, we've detected more than one error, so we set
// diffIndex back to -1 here to avoid the conditional below this loop.
diffIndex = -1
break
}
diffIndex = i
}
}
if diffIndex != -1 {
fmt.Printf("%s%s\n", box1[0:diffIndex], box1[diffIndex+1:])
return
}
}
}
}