WebBZOJ4836(CDQ divide and conquer + FFT (NTT meeting T)) Problem surface The Title defines a strange operation, which is Two arrays A and B are also given. The length of the array and the size of the element are <=5*10^4. There are multiple queries, give a k, ask how many pairs (i,j) make WebJan 31, 2024 · CDQ D&C is a offline technique invented by a China competitive programmer (called CDQ, obviously). CDQ D&C is almost same to normal D&C. The biggest …
[BZOJ4836]二元运算(分治FFT) - 编程猎人
Web首先如果只有加法,就是裸卷积。. 如果只有减法,那么有 c k = ∑ i = k n a i b i − k ,把b翻转,最后将c前移n位即可 c n + k = ∑ i = 0 n a k + i b n − i. 现在有了大小关系的限制,我 … Webbzoj4836 [Lydsy1704 month contest] Binary operation (divide and conquer FFT) 【bzoj 4833】[Lydsy1704 Month Competition] Least Common Peel Number Binary search of … gas watches
「BZOJ 4836」二元运算 Trisolaris
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