作者查詢 / steve1012
作者 steve1012 在 PTT [ C_and_CPP ] 看板的留言(推文), 共748則
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1F→: ...heap =\= heap sort11/18 22:04
2F→: 書上用的是用array 存一個tree 你先研究一下怎麼用arra11/18 22:05
3F→: y存binary tree11/18 22:05
9F推: 為什麼要判斷非空在delete? 建議所有delete後面都要把11/12 23:12
10F→: 指標指向null 避免未定義行為很難debug11/12 23:12
6F推: 這個可以用一個integer 來模擬所有情形 寫成for loop11/12 03:01
7F→: 效率很高11/12 03:01
8F→: 想寫遞迴的話Google subset sum recursion11/12 03:02
9F→: 有很多教學11/12 03:02
2F推: undefined behavior 只是剛好沒爆炸而已11/09 14:22
3F→: 你要知道C/C++是很危險的 存取過界不一定會爆炸11/09 14:22
4F→: 所以可以的話會多用container.. 比較安全一點11/09 14:22
2F推: 你用一個pointer 接double pointer 不覺得怪嗎11/09 09:39
3F→: 都不用derefernce?11/09 09:40
10F推: 一的type 是對的11/09 13:53
11F推: 2 根本連compile都不會過 你怎麼讓他跑的?11/09 13:59
12F→: 2 你用一個pointer接double start pointer 光type就錯11/09 13:59
13F→: 怎麼會對?11/09 14:00
14F→: 我上面的推文本來就是講2 1本來就沒有錯11/09 14:01
15F→: 寫code有時候為了乾淨 的確可能會把一個2d array的每一11/09 14:02
16F→: 個row 都特別用一個pointer去指 看起來比較乾淨11/09 14:02
17F→: 不過你給的code片段太少 很難知道為啥他要這樣11/09 14:02
18F→: 但1本來就沒錯就是了11/09 14:03
19F推: 不是 img[0][0] 是第一個element &img[0][0]是它的位11/09 14:17
20F推: 置 跟 *img 指導的地方基本上一樣11/09 14:19
5F推: 我會想用find_first_of 自己parse11/06 04:57
1F推: 看不太懂你想要幹嘛11/05 21:00
2F→: Marr1 跟marr2有啥關聯11/05 21:01
3F推: 幾個看到的問題1.size 用size_t 2. 為何不用vector 3.11/05 21:04
4F→: 值沒有出始化11/05 21:04
5F→: Matrix 剛開始會是一堆garbage11/05 21:05
19F推: STD bind 就好11/04 21:56
13F推: 應該立版規 問之前都要試過拆行xD11/05 10:33
51F推: 根本就沒差那一行 有什麼必要寫這樣?11/04 02:34