Leetcode Note: Go - Create Target Array in the Given Order

Count Largest Group - LeetCode
https://leetcode.com/problems/count-largest-group/

• Go 言語で取り組んだメモ

回答

Go with hashmap - Count Largest Group - LeetCode
https://leetcode.com/problems/count-largest-group/solutions/2466952/go-with-hashmap/

```go func countLargestGroup(n int) int { m := make(map[int][]int)

for i := 1; i <= n; i++ {
    sum := sumDigit(i)
    m[sum] = append(m[sum], i)
}

max := -1<<63

for _, lst := range m {
    if len(lst) > max {
        max = len(lst)
    }        
}

count := 0 

for _, lst := range m {
    if len(lst) == max {
        count++
    }
}

return count

}

func sumDigit(num int) int { sum := 0

for num > 0 {
    sum += num%10
    num /= 10
}

return sum

} ````