0392-is-subsequence.kt

class Solution {
    fun isSubsequence(s: String, t: String): Boolean {
        var sIndex = 0
        var tIndex = 0
        while(sIndex < s.length && tIndex < t.length){
            if(s[sIndex] == t[tIndex]) sIndex++
            tIndex++
        }
        return sIndex == s.length
    }
}