作者查詢 / oToToT
作者 oToToT 在 PTT [ C_and_CPP ] 看板的留言(推文), 共123則
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1F→: 單純演算法太慢,你的複雜度是O(N),太慢了07/29 18:47
3F→: sparse table06/07 18:21
2F→: linear sieve呢04/26 23:47
18F→: 問題就只是為什麼不加括號而已吧,畢竟沒多少人喜歡背各種04/22 03:02
19F→: 運算順序04/22 03:02
13F推: 在C++17下這樣還是UB嗎04/20 20:56
5F推: 如果是double,int之類的話,可能也可以考慮看看02/14 22:47
6F→: is_floating_point02/14 22:47
1F→: 重新開機之後也會這樣嗎?12/15 23:27
6F推: 原po不就常常因為這樣,然後...12/15 18:41
18F推: KD-Tree還好吧,不過可以嘗試先做其他樹狀資料結構08/01 17:54
3F→: 化簡後的那個不是可以直接算嗎07/02 18:46
5F→: 那個s=\sum_{i=1}^{M}\sum_{j=1}^{i-1}i \cdot j07/02 19:51
6F→: 稍微化簡可以拿到這個s=(M^2(M+1)^2)/8-(M(M+1)(2M+1))/1207/02 19:55
7F→: 所以是O(N^4)沒錯07/02 19:55