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lines changed Original file line number Diff line number Diff line change 11# [ level 2] 가장 큰 수 - 42746
22
3- [ 문제 링크] ( https://school.programmers.co.kr/learn/courses/30/lessons/42746?language=java )
3+ [ 문제 링크] ( https://school.programmers.co.kr/learn/courses/30/lessons/42746 )
44
55### 성능 요약
66
7- 메모리: 393 MB, 시간: 2933.40 ms
7+ 메모리: 122 MB, 시간: 236.65 ms
88
99### 구분
1010
1616
1717### 제출 일자
1818
19- 2026년 02월 26일 18:54:46
19+ 2026년 02월 27일 14:22:06
2020
2121### 문제 설명
2222
Original file line number Diff line number Diff line change @@ -10,16 +10,18 @@ public String solution(int[] numbers) {
1010 }
1111
1212
13- Arrays .sort (arr , (a , b ) -> (b + a ).compareTo (a + b ));
13+ Arrays .sort (arr , (b , a ) -> (a + b ).compareTo (b + a ));
1414
1515
1616 if (arr [0 ].equals ("0" )) return "0" ;
1717
18+
19+ StringBuilder sb = new StringBuilder ();
20+
1821 for (String s : arr ){
19- answer += s ;
22+ sb . append ( s ) ;
2023 }
2124
22- return answer ;
23- // String.valueOf()
25+ return sb .toString ();
2426 }
2527}
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