class Solution { public int solution(String my_string, String target) { int answer = 0; if(my_string.contains(target)) { answer = 1; } return answer; } }

class Solution { public String solution(String[] str_list, String ex) { String answer = ""; for(int i = 0; i < str_list.length; i++) { if(str_list[i].contains(ex)) { continue; } else { answer += str_list[i]; } } return answer; } }

class Solution { public int solution(double flo) { int answer = (int) flo; return answer; } }

class Solution { public String solution(String my_string, int n) { String answer = my_string.substring(0, n); return answer; } }

class Solution { public int solution(int[] num_list, int n) { int answer = 0; for(int i = 0; i < num_list.length; i++) { if(n == num_list[i]) { answer = 1; } } return answer; } }