프로그래머스 / 크기가 작은 부분 문자열

https://school.programmers.co.kr/learn/courses/30/lessons/147355

파이썬

solution = lambda t, p: sum(1 for i in range(len(t) - len(p) + 1) if int(t[i: i + len(p)]) <= int(p))

def solution(t, p):
    length = len(p)
    p = int(p)
    answer = 0
    for i in range(len(t) - length + 1):
        if int(t[i: i + length]) <= p:
            answer += 1
    return answer

코틀린

class Solution {
    fun solution(t: String, p: String): Int {
        var answer = 0
        val num = p.toInt()
        for (i in 0..(t.length - p.length)) {
            val temp = t.slice(i until (i + p.length))
            if (temp.toInt() <= num)
                answer++
        }
        return answer
    }
}

class Solution {
    fun solution(t: String, p: String): Int {
        val num = p.toInt()
        return (0..(t.length - p.length))
            .map { t.slice(it until (it + p.length)) }
            .count { it.toInt() <= num }
    }
}