yikun wang

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Recent activity by yikun wang Recent activity Votes

  • how to solve the max-min routing question?

    Awaiting user input

    Hi 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...

    yikun wang 2 followers 1 comment 0 votes

  • how to count a specific number in the Var list

    Answered

    Hi 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...

    yikun wang 2 followers 1 comment 1 vote

  • Is there any function like count(X) in gurobi?

    Answered

    Hi 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...

    yikun wang 5 followers 5 comments 0 votes

  • How to limit the occurrences of variables with a specific value？

    Answered

    Hi 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...

    yikun wang Edited 4 followers 4 comments 0 votes