27 lines
439 B
Go
27 lines
439 B
Go
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// Dup1 prints the text of each line that appears more than
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// once in the standard input, preceeded by its count.
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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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)
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func main() {
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counts := make(map[string]int)
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input := bufio.NewScanner(os.Stdin)
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for input.Scan() {
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counts[input.Text()]++
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}
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//NOTE: ingnoring potential errors from input.Err()
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for line, n := range counts {
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if n > 1 {
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fmt.Printf("%d\t%s\n", n , line)
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}
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}
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}
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