12713 - Pearl Chains

All about problems in Volume 127. If there is a thread about your problem, please use it. If not, create one with its number in the subject.

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Re: 12713 - Pearl Chains

Post by refazul.refat »

Any reasonable way to optimize the following equation ?

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sigma( C(A+B-i , A-i)*C(B, B-i)*X^(A-i)*Y^(B-i)*Z^(i) ) (0 <= i <= min(A, B))
Getting TLE since A or B can be very large.

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