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import kotlin.math.sqrt class Solution { fun solution(nums: IntArray): Int { var answer = 0 for (i in 0 until nums.size - 2) { for (j in i + 1 until nums.size) { for (k in j + 1 until nums.size) { var count = 1 val sum = nums[i] + nums[j] + nums[k] val sqrt = sqrt(sum.toDouble()) for (s in 2..sqrt.toInt()) { if (sum % s == 0) { count++ } } if (count == 1) { answer++ } } } } return answer } }
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