48 lines
810 B
Go
48 lines
810 B
Go
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package main
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import (
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"crypto/md5"
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"fmt"
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"io"
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"log"
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"strconv"
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)
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func main() {
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var readInp string
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for {
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_, err := fmt.Scan(&readInp)
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if err != nil {
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if err != io.EOF {
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log.Fatal(err)
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}
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break
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}
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}
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firstCoin := searchChunk(readInp, 0, 1000000000)
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fmt.Printf("\n%s%d :: %d\n", readInp, firstCoin, firstCoin)
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}
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func searchChunk(key string, start, end int) int {
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// So we know it's still running
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for i := start; i <= end; i++ {
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coin := key + strconv.Itoa(i)
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coinMd5 := fmt.Sprintf("%x", md5.Sum([]byte(coin)))
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if isCoin(coinMd5, "000000") {
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return i
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}
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}
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return -1
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}
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func isCoin(s string, moneyMaker string) bool {
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if len(s) < len(moneyMaker) {
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return false
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}
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for i := 0; i < len(moneyMaker); i++ {
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if s[i] != moneyMaker[i] {
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return false
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}
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}
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return true
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}
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