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add day-06 + benchmarks
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7
day-06/internal/util/util.go
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7
day-06/internal/util/util.go
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@@ -0,0 +1,7 @@
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package util
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func ReplaceAtIndex(s string, r rune, i int) string {
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out := []rune(s)
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out[i] = r
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return string(out)
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}
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