A B D E F G trip_id starttime stoptime bikeid tripduration from_station_id from_station_name H to_station_id to_station_name J usertype K 2 int String String int int int String int String String L gender birthyear String int 3 12426 7/1/2013 0:07 7/1/2013 0:10 403 173 106 McCormick Place 4 12430 7/1/2013 0:12 7/1/2013 0:16 403 240 LO 5 12434 7/1/2013 0:18 7/1/2013 0:25 403 405 6 12436 7/1/2013 0:27 7/1/2013 0:37 403 614 282 Larrabee St & Menomonee St 146 Lincoln Ave & Armitage Ave 124 Cannon Dr & Fullerton Ave 7 12439 7/1/2013 0:40 7/1/2013 0:42 403 144 8 12440 7/1/2013 0:44 7/1/2013 1:01 403 986 9 12443 7/1/2013 1:01 7/1/2013 1:15 403 824 10 10 12447 7/1/2013 1:16 7/1/2013 1:21 403 283 11 12448 7/1/2013 1:22 7/1/2013 1:26 403 262 60 Sheffield Ave & Fullerton Ave 189 Racine Ave & Fullerton Ave 60 Sheffield Ave & Fullerton Ave 25 Ashland Ave & Armitage Ave 223 Wood St & North Ave 282 Larrabee St & Menomonee St 146 Lincoln Ave & Armitage Ave 124 Cannon Dr & Fullerton Ave 60 Sheffield Ave & Fullerton Ave 189 Racine Ave & Fullerton Ave Subscriber Male 1971 Subscriber Male 1971 Subscriber Male 1971 Subscriber Male 1971 Subscriber Male 1971 60 Sheffield Ave & Fullerton Ave 25 Ashland Ave & Armitage Ave 223 Wood St & North Ave Subscriber Male 1971 12 12 12453 7/1/2013 4:46 7/1/2013 4:50 55 272 23 Daley Center Plaza 13 12455 7/1/2013 6:10 7/1/2013 6:15 107 295 14 12458 7/1/2013 6:16 7/1/2013 6:21 457 316 19 Franklin St & Jackson Blvd 37 Clinton St & Tilden St 65 Damen Ave & Pierce Ave 43 Michigan Ave & Lake St 301 Clinton St & Madison St Subscriber Male Subscriber Male Subscriber Male 1971 1971 1971 Subscriber Male 1976 Subscriber Male 1952 15 12459 7/1/2013 6:16 7/1/2013 6:30 857 836 16 12466 7/1/2013 6:28 7/1/2013 6:38 41 590 17 12473 7/1/2013 6:32 7/1/2013 6:43 395 656 18 12485 7/1/2013 6:38 7/1/2013 6:47 567 536 10 Clinton St & Washington Blvd 31 Wabash Ave & Roosevelt Rd 262 Fairbanks Ct & Grand Ave 397 Kimbark Ave & 53rd St 10 Clinton St & Washington Blvd 247 Ashland Ave & Chicago Ave Subscriber Male 1983 Subscriber Male 1965 9 Clark St & Congress Pkwy 20 Dearborn St & Adams St Subscriber Male 1953 Subscriber Male 1956 20 Dearborn St & Adams St Subscriber Male 1978 19 12478 7/1/2013 6:44 7/1/2013 6:51 275 418 155 May St & Randolph St 43 Michigan Ave & Lake St Subscriber Male 1977 20 20 12477 7/1/2013 6:44 7/1/2013 6:53 705 528 10 Clinton St & Washington Blvd 50 State St & Kinzie St Subscriber Male 1967 27 21 12487 7/1/2013 6:48 7/1/2013 7:09 536 1236 22 12479 7/1/2013 6:53 7/1/2013 6:57 529 213 23 12489 7/1/2013 6:56 7/1/2013 6:58 662 106 24 12500 7/1/2013 6:59 7/1/2013 7:09 759 560 25 12510 7/1/2013 7:03 7/1/2013 7:18 754 855 26 12513 7/1/2013 7:06 7/1/2013 7:14 543 518 65 Damen Ave & Pierce Ave 174 Larrabee St & North Ave 262 Fairbanks Ct & Grand Ave 138 Canal St & Jackson Blvd 65 Damen Ave & Pierce Ave 155 May St & Randolph St 43 Michigan Ave & Lake St Subscriber Male 1983 58 Dayton St & North Ave 262 Fairbanks Ct & Grand Ave Subscriber Male 1960 Subscriber Male 1986 1 Michigan Ave & Washington St 282 Larrabee St & Menomonee St 138 Canal St & Jackson Blvd Subscriber Male 1958 27 12521 7/1/2013 7:08 7/1/2013 7:30 321 1348 5 Clark St & Randolph St 28 12526 7/1/2013 7:10 7/1/2013 7:17 607 417 29 12528 7/1/2013 7:12 7/1/2013 7:28 271 984 30 12530 7/1/2013 7:14 7/1/2013 7:33 421 1155 5 Clark St & Randolph St 146 Lincoln Ave & Armitage Ave 164 Racine Ave & 18th St 31 Wabash Ave & Roosevelt Rd 20 Dearborn St & Adams St 43 Michigan Ave & Lake St 440 Cottage Grove Ave & 51st St Subscriber Male Subscriber Male Subscriber Male 1986 1960 1975 Subscriber Male 1982 Subscriber Male 1984 Subscriber Female 1987 31 12539 7/1/2013 7:18 7/1/2013 7:27 440 568 64 Wells St & Erie St 27 Halsted St & Polk St Subscriber Male 1983 32 12543 7/1/2013 7:20 7/1/2013 7:28 160 466 138 Canal St & Jackson Blvd 5 Clark St & Randolph St Subscriber Male 1973 33 12541 7/1/2013 7:20 7/1/2013 7:30 598 581 10 Clinton St & Washington Blvd 43 Michigan Ave & Lake St Subscriber Male 1979 34 12542 7/1/2013 7:20 7/1/2013 7:30 418 587 155 May St & Randolph St 43 Michigan Ave & Lake St Subscriber Male 1963 1 ID gender Test_Number Date Age Curl Ups_1Min Shuttle_Run Sit_Reach Mile_RunSS Push_Ups 2 int char int String int int double int int int 3 13 M 1 11/3/2010 11:24 11 4 13 M 2 6/2/2011 8:57 11 540 50 11.5 14 362 10 10 47 11.1 11 374 1 LO 5 13 M 3 10/31/2011 15:11 12 00 6 13 M 5 6/3/2012 12:54 22 51 11 19 325 2 12 56 13.2 17 319 16 7 13 M 7 10/30/2012 13:25 13 48 11 19 301 20 20 8 13 M 8 6/3/2013 10:39 13 53 11.7 17 290 30 9 13 M 9 10/23/2013 10:48 14 10 13 M 10 5/21/2014 13:45 14 11 13 M 11 10/9/2014 8:39 15 15 59 55 55 9.6 13 295 28 55 10 12 272 20 -1 -1 0 0 21 -1 12 13 M 12 10/5/2015 10:24 16 -1 -1 0 0 -1 13 13 M 13 10/6/2016 12:58 17 -1 -1 0 0 -1 14 18 F 1 11/8/2010 9:35 10 44 11.1 30 80 425 27 15 18 F 2 6/1/2011 14:53 10 42 11.3 0 464 14 16 18 F 3 10/25/2011 12:50 11 46 10.5 35 347 25 17 18 F 4 5/20/2012 12:55 11 49 49 10.6 34 361 32 18 18 F 5 10/15/2012 13:52 12 48 0 35 0 25 19 18 F 6 6/3/2013 11:37 12 43 11.1 36 369 32 20 18 F 7 10/30/2013 13:45 13 41 11.1 39 443 22 21 18 F 8 5/29/2014 10:23 13 -1 -1 0 372 -1 22 18 F 9 10/21/2014 10:58 14 46 46 10.8 39 411 21 21 23 18 F 10 5/20/2015 10:23 14 42 11.1 37 334 35 24 18 F 11 10/5/2015 10:11 15 25 18 F 12 10/12/2016 7:40 16 56 -1 -1 0 0 -1 -1 -1 0 0 -1 26 20 M 1 11/2/2010 11:52 9 25 25 9.7 29 29 370 15 For any even number n, n/4 =? O (n-1)/2(n+1)/2 O (n-2)/2x (n+2)/2 (n)/2 (n)/2 O(n)/2x (n+2)/2