题目:
题解:
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)
}