LeetCode179.go

package main

import (
	"sort"
	"strconv"
)

func largestNumber(nums []int) string {

	sort.Slice(nums , func(i , j int) bool {
		x , y := nums[i] , nums[j]
		sx , sy := 10 , 10
		for sx <= x {
			sx *= 10
		}
		for sy <= y {
			sy *= 10
		}
		return sy * x + y > sx * y + x
	})

	if nums[0] == 0 {
		return "0"
	}

	ans := []byte{}
	for  _ , x := range nums {
		ans = append(ans , strconv.Itoa(x)...)
	}
	return string(ans)

}

func main() {
	
}