作者查詢 / walker2009
作者 walker2009 在 PTT [ C_and_CPP ] 看板的留言(推文), 共423則
限定看板:C_and_CPP
看板排序:
全部C_and_CPP423SuperStarAve175Beauty112StupidClown90Prob_Solve50Stock48Soft_Job44Android39biker19Gossiping18NTHU_STAT9413Japan_Travel10Jay9Broad_Band8MobileComm8LIU-CHEN7SayLove7FCU_EE97A6FCU_EE97B6Gradol6joke6NDMC-PH276AndroidDev5DYU5KS97-3105sex5TA_AN5Tech_Job5YiGo3115YZU_CN99A5AION4ASIA-uni4Butterfly4FLAT_CLUB4HSNU_9484KTV4Master_D4NCCU08_JAPAN4NTPU-STAT954SSSH-16th-Fk4TCFSHvolley4Bunco3CSMU-D883CTSH963013CYSH97Y3183Facebook3FJU-Family3give3Hate3HSNU_11433iOS3MCU_Talk3NCCU08_Ethno3NCKU_EARTH983NCUFingrad033NDHU-His1003NDMC-D623NTUBIME-1023NTUE-DC993STDM-97-303B3USC3Vocal3ASHS-94sin2BCC_Midnight2Bilk2CCU_ACCGS982Cheer2ck_17_3012cksh84th3222cksh85th3012CodeJob2CPU_7712CSMU-D-SC2CSMU-D972CSMU-HSA962CSMUdancepub2CSU2CYCU_ICE90AB2EEBaseball2FJU-STAT95B2GuessX32HCHS603122HCU2HSNU_10612HSNU_10632HSNU_10982HSNU_11422ILSH-913112ILSH_923122Inference2Key_Mou_Pad2KHCHS_TALK2KS92-3192KS95-3022KS96-3052Little-Games2LTSH-963112NCCU02_Korea2NCHU-FS1002NCHU-Stat972NCU97ME-B2NCUECON962NDMC-N572NDMC-PH232NDU-Talk2NTHU-EE-CAPT2NTOU-AQUA982NTUBSE-B-972NTUEE_Lab4262NTUmed912NTUot972NTUST-ECE2NTUST-EE-B932NTUST-EE-B962NUK_EE100A2NUTN_MS992NUU-EE-97A2Orzhong97cl2pccu_physics2PCSH96_3062PushDoll2SSSH-09th1142STDM-93-3032SuperIdol2Supermission2TigerBlue2TKU-IE942TTU-talk2TTU-Transfer2Viator94Ding2WarHammer2WuLing50-3022YuanLi3042Anti-ramp1AntiVirus1AOSO_Lab1ArabicBasket1ASHS-95RN1B98303XXX1BigShiLin1CCJH-88g-3141CCU_EE961CGU_EE981CH12th3081CHSH-3191CJCU1CJCU_HCA981ck59th3061ck61st3091ck61st3121ck61st3261CKCB1cksh84th3121cksh85th3071cksh85th3101cksh85th3171cksh85th3191CMS_97_S3F1CMU_Talk1coincidence1CPSHS1CPU_FC7611CPU_FS7411CS95Lien1CSHS57th3141CSMU-D981CSMU-HSA951CSMU-HSA971CTSH963021CTSH97EXP1CTSH98EXP1CYCU_Talk1Deserts1DIABLO1ENG_BASE1FacebookBM1facelift1Falcom1Fallinlove1FCU-EES1FCU-PF20061FCU-TTEM93A1FCU_DOP_SB1FCU_MOT1FCUMCAE-SB1FJU-ACCR941FJU-EE-2006A1FJU-EE-COMM1FJU-EE-VLSI1FJU-Stat95A1FJU-Stat96A1FJU_Chiayun1FJU_HA-club1FJU_JCS111FJU_N96b1FJU_SW_SBMan1Geotecheng961GIEE_981GIEE_BASKET1guitar1haoenjiajia1HC-th11-1121hc3141HCHS543021HCHS593051HLHS_10thU1Hsinchu1HSNU_10101HSNU_10651HSNU_10661HSNU_10911HSNU_11061HSNU_11071HSNU_11121HSNU_11171HSNU_11241HSNU_11261HSNU_11461HSNU_11501HSNU_11701HSNU_8751HSNU_NCCU1ILSH-983051image1ISU_CS_93A1kavalan081KGS_Guitar1KHCHS-93-3061KHCHS-93-3091Kids_Sucker1KOF1KOU1KS92-3131KS92-3161KS93-3201KS94-3081KS94-3181KS95-3141KS96-2021KS96-3111KS96-3141KS96-3181KS97-2161KS97-3161KS97-3181KS98-3121KUAS_5890311LD_IM93-21LifeSci_951LineageII1liuyifei1Loan1LOVE-EDDY1LTK1MCUBT97_21MINGDAO1movie1NAOE-861NCCU04_TUR1NCCU06_BA1NCCU07_ETHNO1NCCU07_STGRA1NCCU_DANCE1NCHU-AGR061NCHU-AGR071NCHU-CE-421NCHU-MKT991NCHU_AMpower1NCHUS1NCKU_BMSOFT1NCNUEM1NCUECON971NCYU_BE_96b1NCYU_Fst_991NDHU-Ch1011NDHU-His1021NDHU-His961NDHU_ACC_9th1NDMC-P921NDMC-ROCK1NEHS19th41NFU1NIU-ECE92b1NIU-ECE94b1NKFUST-CCE901NKJH_29_3131NPTU_CaC1NSYSU_math1NTCU-SPE92A1NTHU-MSE111NTHUTL961NTNU_Lin_961NTPU-ECONM961NTPU-STAT961NTU-Karate1NTUBIME-1001NTUE-CS1021NTUE-CS991NTUE-EPC-971NTUE-ME991NTUE_NSE1001NTUE_Nse1011NTUE_Nse1021NTUE_Nse961NTUEE_LAB2061NTUEE_LAB5061NTUEOE_R4021NTUGIEE_AMTG1NTUGIEE_EDA1NTUHorti961NTUphy981NTUPP-871NTUST-EE-A971NTUST_ME1NTUT_EE493A1NTUT_IPET4951NUK_AC1001NUU-EO-97A1NUU_CLL1NUU_Electric1NYUST97_IEM1NYUST_EE98A1OIT_main1ONE_PIECE1pal1PCSH_94_3101PHI_Baseball1Physics1PSWO3rd1PttLifeLaw1Sangokumusou1Scout1SCU_ACCM951SCU_ACCM971SCU_Chin96C1SCU_Law101D1SCU_Talk1scutran_city1Seiya1share1SSSH-10th3121SSSH-16th3131SSSH_17th3141Stephen1StraightMH1STU1TaichungBun1TallClub1TCFSH67TH101tcfsh69th3041TFSHS65th3151TFSHS66th3191TFSHS67th3161TFSHS67th3211TFSHS68th3161TFSHS69th3071TFSHS69th3181THU-HIS971TKU_EW94B1TNFSH96121TNFSH98th1TodaErika1Touhou1transgender1TSH96_SM1TTSH12th3091TTU-AFL1TTU-AMath1TTU-EE991UFO1UKN1Whitney1WuLing50-3031WuLing50-3171XiangSheng1YHSH96011YoungDotx31YP95-3121Yup01-061YZU_EE96B1ZLSH1ZQ-Physics1<< 收起看板(382)
1F推:認真推!06/05 05:57
11F→:開在global 別開在local ?06/01 03:55
16F推:假設分數是 m/n , 由於除以n最多只會有 0~n-1 這些餘數05/30 23:44
17F→:設個 flag[n] , 初始為0, 如果做長除法時某個餘數出現05/30 23:45
18F→:某個餘數r出現在位置p05/30 23:46
19F→:if(flag[r]==0) flag[r]==p;05/30 23:47
20F→:else 這個餘數之前出現過, 因此有循環小數!05/30 23:47
21F→:http://tinyurl.com/25xrhcp page 3~505/31 00:15
7F→:有趣在...老師出出來當作業05/31 12:30
9F→:每個點更新最短距離時順便存 parent 是誰05/30 23:41
2F→:clear screen ?05/27 02:07
2F→:從左上角開始照row major按的話,第二個bound可以再加速05/27 00:49
3F→:例如按到[2][2]時, [1][1]其實就已經不會變了05/27 00:51
4F→:不過應該不差這麼一點@@ 這兩個條件應該夠了才對05/27 00:51
5F→:depends on pattern05/27 00:56
7F→:不然你原本用什麼XDDD05/29 06:20
3F推:我了解你的感受, 先把自己填到一定程度, 更多高級的05/26 16:03
4F→:東西才能繼續下去05/26 16:03
5F→:不過這也是要花不少時間的, 寫ACM就是一種方法XD05/26 16:04
6F→:剛開始可以先寫寫USACO05/26 16:04
7F→:如果你是清大學生的話有類似的課程哦XDD05/26 16:07
9F→:交大沒有...(恨)05/26 16:24
13F→:讀完可能不太夠...全部寫出來就很強!05/26 16:28
18F推:我覺得不一定耶...有些人就是適合先學理論再講實作05/26 17:10
19F→:有些人就比較習慣從實作中發現理論05/26 17:10
4F→:請問, 意思是不管垂直投影或是透視投影, 都是投影到05/25 15:08
5F→:near所代表的那個平面是嗎@@?05/25 15:08
6F→:還是說是投影到 z=0 這個平面呢??? 也就是 xy-平面05/25 15:14
8F→:垂直投影好像沒差@@ 可是透視投影的投影平面好像有差?05/25 19:33
9F→:投影平面的位置會影響到投影點的位置不是嗎@@?05/25 19:34
11F→:謝謝little大的說明...但我還是不太懂@@05/26 00:09
12F→:不知道是不是有說明清楚的教學網頁@@~這問題困擾我好久05/26 00:10
21F→:感謝V大說明@@ 我再細想一下05/26 00:49
22F→:原先想法是 投影幕的遠近 雖然不影響原本物體的座標05/26 00:51
23F→:但不是會影響投影之後成像的比例嗎??05/26 00:51
24F→:(以 persprctive projection 而言)05/26 00:52
25F→:喔喔...好像開始有點感覺了...05/26 00:53
26F→:所以意思是不是 其實只要比near近的任何一個平面都一樣05/26 00:58
27F→:可以當作投影平面, 雖然出來比例不一樣, 但最後畫出在05/26 00:59
28F→:螢幕上時都可以畫成想要的比例?05/26 00:59
29F→:如果是這樣的話...那最終的比例是怎麼去設定呢@@?05/26 01:00
30F→:原本以為是投影幕的位置決定後, 比例就會跟著決定了05/26 01:00
12F推:迴圈裏面宣告的東西, 只有回圈裏面有用05/25 04:52
13F→:你裡面的 int x1 等於每跑一次回圈都重新宣告一個 x105/25 04:53
14F→:至於這個 x1 值是多少, 運氣好 compiler 就會幫你設為005/25 04:53
15F→:運氣不好可能是一個奇怪的值05/25 04:53
16F→:好習慣就是雖然是兩個不同的scopes,也不要宣告同名變數05/25 04:55
17F推:至於while後面的判斷式, 算在scope外, 所以他是一直拿05/25 04:58
18F→:外面的那個 x1=0 的值在做判斷05/25 04:58
19F推:想成下面的程式:05/25 05:00
20F→:int x1外 = 0;05/25 05:01
21F→:while( x1外!=5 )05/25 05:01
22F→:{05/25 05:01
23F→: int x1內 = x1內 + 1;05/25 05:01
24F→: cout << x1內 << endl;05/25 05:02
25F→:}05/25 05:02
26F→:你要讓迴圈內的東西能一直increase下去,變數就要宣告在05/25 05:05
27F→:迴圈外05/25 05:05
28F→:compiler在宣告時會幫你設為0的話, 裡面會不斷印出105/25 05:05
29F→:實測Dev並沒有幫忙初始化, 所以裡面的x1印出是奇怪的值05/25 05:08
30F→:你可以在迴圈裏面最後加個 system("pause");看第一個值05/25 05:09