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Jun
13
comment algorthm to find a farthest point in a convex polygon to an external point
@dtldarek I cannot understand why you are able to use binary search to find 1-0 in such array?
Jan
20
awarded  Yearling
Sep
30
awarded  Explainer
Sep
1
awarded  Tumbleweed
Aug
25
asked Minimal vertex cover in bipartite graph question
Aug
24
awarded  Curious
Aug
23
asked Number of nonnegative solutions of linear diophantine inequality
Jul
2
comment What's the most efficient way to put all the stones in one pile?
I wrote program and could check only small values, and didn't get anyhing useful from it, because too many states required for solving and it takes exponential time.
Jul
2
awarded  Benefactor
Jul
2
accepted What's the most efficient way to put all the stones in one pile?
Jun
27
comment What's the most efficient way to put all the stones in one pile?
It seems that I understand idea but not details, may be you know worst case example?
Jun
27
comment What's the most efficient way to put all the stones in one pile?
I dont understand how you've counted number of positions. E.g. you have piles {2,1,1} and make {2, 2, 0}. Your assumption doesnt work, because gcd is two. AFAIU you've not counted this state or p became less by one.
Jun
25
awarded  Promoter
Jun
23
revised What's the most efficient way to put all the stones in one pile?
added 100 characters in body
Jun
23
revised What's the most efficient way to put all the stones in one pile?
deleted 26 characters in body
Jun
23
asked What's the most efficient way to put all the stones in one pile?
Oct
9
awarded  Yearling
Feb
11
comment $\int_{0}^{\infty}\frac{1}{kx^{2}+1} dx=\int_{0}^{\infty} dx -\int_{0}^{\infty}\frac{kx^{2}}{kx^{2}+1} dx$ diverges?
$\int_0^\infty 0dx=\int_0^\infty (x-x)dx=\int_0^\infty xdx-\int_0^\infty xdx$
Feb
11
revised $\int_{0}^{\infty}\frac{1}{kx^{2}+1} dx=\int_{0}^{\infty} dx -\int_{0}^{\infty}\frac{kx^{2}}{kx^{2}+1} dx$ diverges?
there is typo here
Feb
11
suggested approved edit on $\int_{0}^{\infty}\frac{1}{kx^{2}+1} dx=\int_{0}^{\infty} dx -\int_{0}^{\infty}\frac{kx^{2}}{kx^{2}+1} dx$ diverges?