[프로그래머스] 크기가 작은 문자열

import java.util.*;

class Solution {
    public int solution(String t, String p) {
        
        int answer = 0;
        long longP = Long.parseLong(p);
        
        for(int i=0; i<t.length()- p.length()+1; i++){
            
            String temp = t.substring(i, i+p.length());
            long longTemp = Long.parseLong(temp);
            
            if(longTemp <= longP){
                answer++;
            }
            
        }
        
        return answer;
    }
}