27 lines
481 B
Go
27 lines
481 B
Go
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package main
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import (
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"crypto/sha1"
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"fmt"
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"strconv"
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)
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func rgbFromHex(hex string) (int, int, int) {
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r, _ := strconv.ParseUint(hex[0:2], 16, 8)
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g, _ := strconv.ParseUint(hex[2:4], 16, 8)
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b, _ := strconv.ParseUint(hex[4:6], 16, 8)
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return int(r), int(g), int(b)
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}
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func hash(str string) string {
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h := sha1.New()
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h.Write([]byte(str))
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res := h.Sum(nil)
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return fmt.Sprintf("%x", res)
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}
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func hasBit(n uint64, pos int) bool {
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val := n & (1 << pos)
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return (val > 0)
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}
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