Hello,

I need help. In the following OPL Model (line 13) I got an Error for the sign "\/". This is a Backslash and a Slash, perhaps from an older version of ILOG CPLEX Opt. Studio? What can I instead use?

I thank you very much!

int+ nOfNodes = ...;

int+ nOfEdges = ...;

int+ k = ...;

struct Edge {

int+ head;

int+ tail;

float+ weight;

};

range edgeRange 1..nOfEdges;

range nodeRange 0..nOfNodes-1;

Edge edges[edgeRange] = ...;

{edgeRange} incidentEdges[v in nodeRange] = {e | e in edgeRange :

edges[e].head = v \/ edges[e].tail = v};

var float+ T;

var int+ x[1..k,edgeRange] in 0..2;

var int+ b[1..k,nodeRange] in 0..10;

minimize T

subject to {

forall(p in [1..k])

sum(e in edgeRange) x[p,e] * edges[e].weight <= T;

forall(p in [1..k])

sum(e in incidentEdges[0]) x[p,e] >= 2;

forall(e in edgeRange)

sum(p in [1..k]) x[p,e] >= 1;

forall(p in [1..k]) {

forall(v in nodeRange) {

(sum(e in incidentEdges[v]) x[p,e]) = 2*b[p,v];

}

}

};

Hi Roschl

The correct or operator in opl studio is ||

Hope that helps