Problem #38

Problem link
Solution:

package main

import (
    "strconv"
    "strings"
)

func main() {
    max := 0
    var tmp int
    for i := 1; i < 10000; i++ {
        str := ""
        for j := 1; j < 9 && len(str) < 9; j++ {
            str += strconv.Itoa(i * j)
        }
        if len(str) == 9 && isPandigital(str) {
            tmp, _ = strconv.Atoi(str)
            if tmp > max {
                max = tmp
            }
        }
    }
    println(max)
}

func isPandigital(str string) bool {
    if len(str) != 9 {
        return false
    }
    for i := 1; i < 10; i++ {
        if !strings.Contains(str, strconv.Itoa(i)) {
            return false
        }
    }
    return true
}

Result: 932718654
Time: 0m0.049s