Skip to content
Switch branches/tags

Name already in use

A tag already exists with the provided branch name. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Are you sure you want to create this branch?
Go to file
Cannot retrieve contributors at this time
array[int] of int: durations;
int: n = length(durations); % number of tracks
set of int: TRACKS = 1..n;
int: k; % number of groups
set of int: GROUPS = 1..k;
array[TRACKS] of var GROUPS: groups;
% each group sums its durations
int: MIN_SUM = min(durations);
int: MAX_SUM = sum(durations);
set of int: SUM = MIN_SUM..MAX_SUM;
array[GROUPS] of var SUM: sums; % no group sums to zero
% the goal
var int: obj;
include "globals.mzn";
% splits are increasing, at least one apart
constraint increasing(groups);
% collects durations into group sums
constraint forall(i in GROUPS) (
sums[i] = sum([durations[j] * bool2int(groups[j] == i) | j in TRACKS])
% only max
%constraint obj = max(sums);
% both max and min
constraint obj = max(sums) - min(sums);
solve :: int_search(groups, dom_w_deg, indomain_median, complete)
minimize obj;
output [
"durations = ", show(durations), "\n",
"groups = ", show(groups), "\n",
"sums = ", show(sums), " -- ", show(min(sums)), "-", show(max(sums)), "\n",
"obj = ", show(obj), "\n"