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52 lines
885 B
Go
52 lines
885 B
Go
package main
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import (
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"bufio"
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"log"
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"math"
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"os"
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)
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// readlines reads lines from stdin.
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// Then it returns them as an array of strings
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func readlines() []string {
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lines := []string{}
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scanner := bufio.NewScanner(os.Stdin)
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for scanner.Scan() {
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lines = append(lines, scanner.Text())
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}
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if err := scanner.Err(); err != nil {
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log.Fatal(err)
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}
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return lines
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}
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// compare returns the number of matching elements
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func compare(a []string, b []string) (int, error) {
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n := 0
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for _, elem := range a {
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if contains(b, elem) {
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n += 1
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}
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}
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return n, nil
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}
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// contains returns true if a slice of elements contains a given element
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func contains[T comparable](elems []T, v T) bool {
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for _, s := range elems {
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if v == s {
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return true
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}
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}
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return false
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}
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// pow returns the value of x to the n
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func pow(x, n int) int {
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return int(math.Pow(float64(x), float64(n)))
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}
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