yikun wang
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Activity overview
Latest activity by yikun wang-
yikun wang created a post,
how to solve the max-min routing question?
Awaiting user inputHi folks, I encountered an issue when I tried to solve the problem: we have `U` city pairs, and we know precisely the possible slot that can place a router. If we just want to use $N_need$ routers...
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yikun wang commented,
Cross-posted here Thanks again for your kind and quick respond！ :）
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yikun wang commented,
Sorry for the slow reply. That's really a good idea to use Jonasz's and Silke's approach. Actually, I come up with the idea as follow: First, we introduce two variables: cnt_x0 = m.addVars(M, N, v...
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yikun wang created a post,
how to count a specific number in the Var list
AnsweredHi there, I wonder how to count a specific number in the Var list. For example, my variable is X, and it is defined as (m.addVars(M, N, vtype=GRB.CONTINUOUS),lb=0, ub=1, and I want to limit total t...
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yikun wang created a post,
Is there any function like count(X) in gurobi?
AnsweredHi there, I wonder how to count a specific number in the Var list. For example, my variable is X, and it is defined as (m.addVars(M, N, vtype=GRB.CONTINUOUS),lb=0, ub=1, and I want to limit total t...
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yikun wang created a post,
How to limit the occurrences of variables with a specific value？
AnsweredHi there, I wonder how to count a specific number in the Var list. For example, my variable is X, and it is defined as (m.addVars(M, N, vtype=GRB.CONTINUOUS),lb=0, ub=1, and I want to limit total t...