i think my algo is right but i have problem with overflow in C++.
who can give me good test?

PS: on Pypy i have TL50 using the same algo( And it's very strange because on test
1000000000 18
1 1
2 1
3 1
4 1
5 1
6 1
7 1
8 1
9 1
10 1
11 1
12 1
13 1
14 1
15 1
16 1
17 1
18 1

my algo works <300ms




PS: AC in C++ after many hacking with overflow. I hate this problem because spent a lot of time to fix problem with arighmetic (not algo)

Edited by author 12.12.2023 00:41