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parent
b7167752b2
commit
f9b3c0a78a
22
LibreOJ/7/7.go
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22
LibreOJ/7/7.go
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package main
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import (
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"bufio"
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"fmt"
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"os"
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"strconv"
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)
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func main() {
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scanner := bufio.NewScanner(os.Stdin)
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var ans int64 = 0
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for scanner.Scan() {
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x, _ := strconv.ParseInt(scanner.Text(), 10, 64)
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ans ^= x
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}
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fmt.Println(ans)
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}
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