ACLPC C - NISHIO Hirokazu's Scrapbox (Auto-translated from Japanese)

ACLPC C

from AtCoder Library Practice Contest

ACLPC_C

C - Floor Sum

https://gyazo.com/93cb826c504be76e1238ebb8f1dd9e6a

floor_sum What kind of application is a mystery

Calculate recursively

Ah, I see, it's the number of grid points under the line.

https://twitter.com/kyopro_friends/status/1304063876019793921?s=21

Find the number of grid points under the line y=(Ax+B)/M

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