g2401_2500.s2437_number_of_valid_clock_times.Solution.kt Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of leetcode-in-kotlin Show documentation

Kotlin-based LeetCode algorithm problem solutions, regularly updated

There is a newer version: 1.30

package g2401_2500.s2437_number_of_valid_clock_times

// #Easy #String #Enumeration #2023_07_05_Time_134_ms_(28.57%)_Space_33.5_MB_(71.43%)

class Solution {
    fun countTime(time: String): Int {
        val counts = intArrayOf(3, 10, 0, 6, 10)
        val ch = time.toCharArray()
        var result = 1
        if (ch[0] == '2') {
            counts[1] = 4
        }
        if (ch[1].code - '0'.code > 3) {
            counts[0] = 2
        }
        if (ch[0] == '?' && ch[1] == '?') {
            counts[0] = 1
            counts[1] = 24
        }
        for (i in 0..4) {
            val ch1 = ch[i]
            if (ch1 == '?') {
                result *= counts[i]
            }
        }
        return result
    }
}