class 편지_230601 { public int solution (String message ) { int answer = 0 ; answer = message. length () * 2 ; return answer; } }
import java.util.Arrays; class 최댓값_만들기_1_230531 { public int solution ( int [] numbers ) { int answer = 0 ; Arrays. sort (numbers); answer = numbers[numbers.length - 2 ] * numbers[numbers.length - 1 ]; return answer; } }