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