• Home
• com.github.javadev
• leetcode-in-kotlin
• 1.10
• source code
• Solution.kt

×

Project download

Many resources are needed to download a project. Please understand that we have to compensate our server costs. Thank you in advance.
Project price only 1 $

You can buy this project and download/modify it how often you want.

g0401_0500.s0481_magical_string.Solution.kt Maven / Gradle / Ivy

package g0401_0500.s0481_magical_string

// #Medium #String #Two_Pointers #2023_01_02_Time_124_ms_(100.00%)_Space_34.3_MB_(100.00%)

class Solution {
    fun magicalString(n: Int): Int {
        val a = IntArray(n + 2)
        var fast = 1
        var slow = 1
        var num = 1
        while (fast <= n) {
            a[fast++] = num
            if (a[slow++] == 2) {
                a[fast++] = num
            }
            num = 3 - num
        }
        var count = 0
        for (j in 1..n) {
            if (a[j] == 1) {
                count++
            }
        }
        return count
    }
}