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홍차넷
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Warning: Use of undefined constant no - assumed 'no' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/outlogin_toby.php on line 45
Warning: Use of undefined constant r - assumed 'r' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/outlogin_toby.php on line 47
Warning: Use of undefined constant r - assumed 'r' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/outlogin_toby.php on line 51
Warning: Use of undefined constant memo - assumed 'memo' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/lib.php on line 237
Warning: Use of undefined constant level - assumed 'level' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/outlogin_toby.php on line 34
Warning: Use of undefined constant no - assumed 'no' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/outlogin_toby.php on line 45
Warning: Use of undefined constant r - assumed 'r' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/outlogin_toby.php on line 47
Warning: Use of undefined constant r - assumed 'r' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/outlogin_toby.php on line 51
Warning: Use of undefined constant memo - assumed 'memo' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/lib.php on line 237
Warning: Use of undefined constant is_admin - assumed 'is_admin' (this will throw an Error in a future version of PHP) in /home/redtea/html/zero_header.php on line 269
Warning: Use of undefined constant level - assumed 'level' (this will throw an Error in a future version of PHP) in /home/redtea/html/zero_header.php on line 300
Warning: Use of undefined constant title - assumed 'title' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/bbs_title.php on line 16
질문
Warning: Use of undefined constant no - assumed 'no' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/bbs_title.php on line 21
Warning: Use of undefined constant header - assumed 'header' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/bbs_title.php on line 31
- 질문 게시판입니다.
Warning: Use of undefined constant use_formmail - assumed 'use_formmail' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/lib.php on line 519
Warning: Use of undefined constant use_category - assumed 'use_category' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/include/print_category.php on line 9
전체기타게임진로연애가정/육아체육/스포츠교육의료/건강철학/종교IT/컴퓨터여행과학문화/예술법률홍차넷경제
Warning: Use of undefined constant level - assumed 'level' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/setup.php on line 29
Warning: Use of undefined constant no - assumed 'no' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/setup.php on line 41
Warning: Use of undefined constant x - assumed 'x' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 398
Warning: Use of undefined constant subject - assumed 'subject' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 402
Warning: Use of undefined constant x - assumed 'x' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 403
Warning: Use of undefined constant reg_date - assumed 'reg_date' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 405
Warning: Use of undefined constant total_comment - assumed 'total_comment' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 406
Warning: Use of undefined constant subject - assumed 'subject' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 402
Warning: Use of undefined constant x - assumed 'x' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 403
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Warning: Use of undefined constant total_comment - assumed 'total_comment' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 406
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Warning: Use of undefined constant reg_date - assumed 'reg_date' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 405
Warning: Use of undefined constant total_comment - assumed 'total_comment' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 406
Warning: Use of undefined constant subject - assumed 'subject' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 402
Warning: Use of undefined constant x - assumed 'x' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 403
Warning: Use of undefined constant reg_date - assumed 'reg_date' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 405
Warning: Use of undefined constant total_comment - assumed 'total_comment' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 406
Warning: Use of undefined constant subject - assumed 'subject' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 402
Warning: Use of undefined constant x - assumed 'x' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 403
Warning: Use of undefined constant reg_date - assumed 'reg_date' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 405
Warning: Use of undefined constant total_comment - assumed 'total_comment' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 406
Warning: Use of undefined constant subject - assumed 'subject' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 402
Warning: Use of undefined constant x - assumed 'x' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 403
Warning: Use of undefined constant reg_date - assumed 'reg_date' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 405
Warning: Use of undefined constant total_comment - assumed 'total_comment' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 406
Warning: Use of undefined constant subject - assumed 'subject' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 402
Warning: Use of undefined constant x - assumed 'x' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 403
Warning: Use of undefined constant reg_date - assumed 'reg_date' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 405
Warning: Use of undefined constant total_comment - assumed 'total_comment' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 406
Warning: Use of undefined constant subject - assumed 'subject' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 402
Warning: Use of undefined constant x - assumed 'x' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 403
Warning: Use of undefined constant reg_date - assumed 'reg_date' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 405
Warning: Use of undefined constant total_comment - assumed 'total_comment' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 406
Warning: Use of undefined constant subject - assumed 'subject' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 402
Warning: Use of undefined constant x - assumed 'x' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 403
Warning: Use of undefined constant reg_date - assumed 'reg_date' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 405
Warning: Use of undefined constant total_comment - assumed 'total_comment' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 406
Warning: Use of undefined constant subject - assumed 'subject' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 402
Warning: Use of undefined constant x - assumed 'x' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 403
Warning: Use of undefined constant reg_date - assumed 'reg_date' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 405
Warning: Use of undefined constant total_comment - assumed 'total_comment' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 406
Warning: Use of undefined constant name - assumed 'name' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view.php on line 2
Warning: Use of undefined constant HTTP_HOST - assumed 'HTTP_HOST' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/memo_replace.php on line 3
Warning: Use of undefined constant x - assumed 'x' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view.php on line 10
Warning: Use of undefined constant use_category - assumed 'use_category' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view.php on line 40
| Date |
Warning: Use of undefined constant reg_date - assumed 'reg_date' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view.php on line 53 21/05/30 17:41:34 Warning: Use of undefined constant mod_date - assumed 'mod_date' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view.php on line 56 |
| Name | 윤지호 |
| File #1 | 캡처1.PNG (91.4 KB), Download : 11 |
| Link #1 | https://euler.synap.co.kr/problem=12 |
| Subject | 파이썬 초보 질문입니다.. |
 프로젝트 오일러 라는 사이트의 예제를 공부중입니다. 해당 사이트 12번의 삼각수의 약수의 개수를 구하는 문제입니다. 스크린샷의 두 코드는 각각 약수의 개수를 구하는 방식이 다른데요. 오른쪽의 코드(triangle.py)는 구글링해서 찾은 'n의 제곱근까지의 약수 * 2 = n의 약수의 개수' 라는 법칙을 활용했구요. 왼쪽의 코드(triangle_1.py)는 n을 소인수분해한 후 각 소인수의 지수에 1을 더해서 곱하는 방식으로 약수의 개수를 구했습니다. 문과라서 수학에 대한 이해도가 전무하여, 그냥 설명만 듣고 보면 오른쪽의 코드가 더 효율적으로 느껴지는데, 막상 실행해보니 왼쪽의 코드가 약 10초가량 더 빨리 계산되더군요. (오른쪽은 약 16초, 왼쪽은 약 6~7초) 이게 어떻게 된 걸까요???;; Warning: Use of undefined constant no - assumed 'no' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view.php on line 133 Warning: Use of undefined constant no - assumed 'no' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view.php on line 146 Warning: Use of undefined constant vote - assumed 'vote' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view.php on line 161 0 이 게시판에 등록된 윤지호님의 최근 게시물 |
|
Warning: Use of undefined constant memo - assumed 'memo' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/lib.php on line 185
Warning: Use of undefined constant use_comment - assumed 'use_comment' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 540
Warning: Use of undefined constant name - assumed 'name' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 542
Warning: Use of undefined constant ismember - assumed 'ismember' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 543
Warning: Use of undefined constant memo - assumed 'memo' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 545
Warning: Use of undefined constant ismember - assumed 'ismember' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 576
Warning: Use of undefined constant ismember - assumed 'ismember' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 577
Warning: Use of undefined constant no - assumed 'no' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 577
Warning: Use of undefined constant level - assumed 'level' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 577
Warning: Use of undefined constant grant_delete - assumed 'grant_delete' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 577
Warning: Use of undefined constant ismember - assumed 'ismember' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/lib.php on line 425
Warning: Use of undefined constant ismember - assumed 'ismember' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/lib.php on line 429
Warning: Use of undefined constant use_formmail - assumed 'use_formmail' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 605
Warning: Use of undefined constant name - assumed 'name' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/lib.php on line 599
Warning: Use of undefined constant name - assumed 'name' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/lib.php on line 599
Warning: Use of undefined constant name - assumed 'name' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/lib.php on line 600
Warning: Use of undefined constant name - assumed 'name' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/lib.php on line 600
Warning: Use of undefined constant is_admin - assumed 'is_admin' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/lib.php on line 605
Warning: Use of undefined constant is_admin - assumed 'is_admin' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/lib.php on line 605
Warning: Use of undefined constant is_admin - assumed 'is_admin' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/lib.php on line 609
Warning: Use of undefined constant is_admin - assumed 'is_admin' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/lib.php on line 609
Warning: Use of undefined constant no - assumed 'no' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/lib.php on line 614
Warning: Use of undefined constant ismember - assumed 'ismember' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/lib.php on line 616
Warning: Use of undefined constant x - assumed 'x' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/lib.php on line 618
Warning: Use of undefined constant name - assumed 'name' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/lib.php on line 618
Warning: Use of undefined constant x - assumed 'x' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 612
Warning: Use of undefined constant name - assumed 'name' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 612
Warning: Use of undefined constant reg_date - assumed 'reg_date' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 620
Warning: Use of undefined constant ismember - assumed 'ismember' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 628
Warning: Use of undefined constant no - assumed 'no' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 628
Warning: Use of undefined constant HTTP_HOST - assumed 'HTTP_HOST' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 640
Warning: Use of undefined constant name - assumed 'name' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 644
Warning: Use of undefined constant no - assumed 'no' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 646
Warning: Use of undefined constant no - assumed 'no' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 646
Warning: Use of undefined constant HTTP_HOST - assumed 'HTTP_HOST' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/cmt_replace.php on line 3
Warning: Use of undefined constant ismember - assumed 'ismember' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 6
Warning: Use of undefined constant file_name - assumed 'file_name' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 28
Warning: Use of undefined constant no - assumed 'no' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 65
106073 class="iamcmt" style="display:none;"> Warning: Use of undefined constant no - assumed 'no' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 66
106073 class='vcm '>
Warning: Use of undefined constant x - assumed 'x' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 70
Warning: Use of undefined constant x - assumed 'x' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 71
Warning: Use of undefined constant no - assumed 'no' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 76
Warning: Use of undefined constant ismember - assumed 'ismember' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 117
Warning: Use of undefined constant ismember - assumed 'ismember' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 118
Warning: Use of undefined constant ismember - assumed 'ismember' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 119
Warning: Use of undefined constant ismember - assumed 'ismember' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 120
Warning: Use of undefined constant ismember - assumed 'ismember' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 121
106073'> 어키도킹
Warning: Use of undefined constant mod_date - assumed 'mod_date' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 133
Warning: Use of undefined constant no - assumed 'no' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 140
Warning: Use of undefined constant no - assumed 'no' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 140
Warning: Use of undefined constant reg_date - assumed 'reg_date' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 142
21/05/30 18:12
106073>삭제 주소복사
Warning: Use of undefined constant level - assumed 'level' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 150
이런건 보통 복잡도 계산을 하면 되는데 간단한거니깐 짧게 말씀드리자면 루프 복잡도가 왼쪽거는 n이 줄어들기 때문에 금방 끝나는거고요 오른쪽거는 얄짤없이 n**0.5 만큼 돌기 때문입니다.
체감을 해보고 싶으시면 루프 안에 변수 하나 넣고 찍어보시면 횟수차가 확날겁니다.
Warning: Use of undefined constant level - assumed 'level' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 158
Warning: Use of undefined constant password - assumed 'password' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 166
Warning: Use of undefined constant vote - assumed 'vote' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 171
Warning: Use of undefined constant vote - assumed 'vote' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 172
Warning: Use of undefined constant vote - assumed 'vote' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 172
Warning: Use of undefined constant no - assumed 'no' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 173
Warning: Use of undefined constant no - assumed 'no' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 173
Warning: Use of undefined constant vote - assumed 'vote' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 173
체감을 해보고 싶으시면 루프 안에 변수 하나 넣고 찍어보시면 횟수차가 확날겁니다.
Warning: Use of undefined constant level - assumed 'level' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 158
Warning: Use of undefined constant password - assumed 'password' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 166
Warning: Use of undefined constant vote - assumed 'vote' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 171
Warning: Use of undefined constant vote - assumed 'vote' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 172
Warning: Use of undefined constant vote - assumed 'vote' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 172
Warning: Use of undefined constant no - assumed 'no' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 173
Warning: Use of undefined constant no - assumed 'no' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 173
Warning: Use of undefined constant vote - assumed 'vote' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 173
106073>
106073>
