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• Solution.kt

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g0001_0100.s0049_group_anagrams.Solution.kt Maven / Gradle / Ivy

package g0001_0100.s0049_group_anagrams

// #Medium #Top_100_Liked_Questions #Top_Interview_Questions #Array #String #Hash_Table #Sorting
// #Data_Structure_II_Day_8_String #Programming_Skills_II_Day_11 #Udemy_Strings
// #2022_08_29_Time_506_ms_(86.55%)_Space_72.5_MB_(81.04%)

class Solution {
    fun groupAnagrams(strs: Array): List> {
        val hm: MutableMap> = HashMap()
        for (s in strs) {
            val ch = s.toCharArray()
            ch.sort()
            val temp = String(ch)
            hm.computeIfAbsent(
                temp
            ) { _: String? -> ArrayList() }
            hm[temp]!!.add(s)
        }
        return ArrayList>(hm.values)
    }
}