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Towers of Hanoi

Clingo standard implementation

Known ASP encodings set a bound to the number of moves that can be done, proposed in (Gebser et al. 2008) for 7 disks and up to 126 movements.

clingo toh_standard_7.pl
clingo toh_standard_8.pl
clingo toh_standard_9.pl

Clingo incremental implementation

ASP encoding by incrementing the number n of allowed movements (from the clingo 5.2.0 distribution) and proposerd in (Gebser et al. 2014)

clingo toh_incremental_7.pl
clingo toh_incremental_8.pl
clingo toh_incremental_9.pl

s(CASP) implementation

s(CASP)’s top down approach can use a CLP-like control strategy to implement the wellknown Towers of Hanoi algorithm. Predicate hanoi(N,T) receives in N the number of disks and returns in T the number of movements and a partial stable model which contains all the movements and the time in which they have to be performed.

scasp hanoi_scasp_7.pl
scasp hanoi_scasp_8.pl
scasp hanoi_scasp_9.pl