Cumulate variable expression

[Alberto Manzini]

Hi, I was looking for a way to get the cumulative sum of variables over time, like the one used in Reservoir constraint in which

cumsum_t must be between min_capacity and max_capacity for all t

and cumsum_t = sum_tau (demands_tau) for tau = 0, 1, ..., t

I need the expression of the cumsum_t to be set into a soft constraint with boundaries

Thanks in advance,

Alberto

[blind.line]

Which solver?

James

On Aug 6, 2025, at 08:18, Alberto Manzini <albertom...@gmail.com> wrote:

Hi, I was looking for a way to get the cumulative sum of variables over time, like the one used in Reservoir constraint in which

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[Alberto Manzini]

Don't know why it keeps deleting my message

[Alberto Manzini]

solver is CP SAT