Two-dimensional prefix in ACwing and how to use it
This article will explain in detail about the two-dimensional prefix in ACwing and how to use it. The content of the article is of high quality, so the editor will share it with you for reference. I hope you will have a certain understanding of the relevant knowledge after reading this article.
# include # include using namespace std;const int Numb5010 int s [N] [N]; int main () {int cnt,R; cin > > cnt > > R; / optimize R=min (5001Col R); / / prevent empty nymphs in the lower right corner; while (cnt--) {int x quotation W; cin > x > > y > > w; x stories reproduce yellows; n=max (nJournal x) M=max (int y); s [x] [y] + = w;} / / preprocessing prefix and for
