ALGOTUTOR(1) User Contributed Perl Documentation ALGOTUTOR(1)
algotutor - an interactive program for observing the intermediate steps of algorithms.
algotutor [OPTION] ... DATA ...
algotutor is an interactive program for observing the intermediate steps of algorithms.
The target audience is computer science students and/or anyone who studies algorithms
and/or data structures. One can create data files in plain text format (actually perl
anonymous hashes, but one need not care) and let algotutor runs through some predefined
algorithm. Then one can step backward and forward through the execution sequence of the
algorithm at different levels of details. It requires perl-Tk.
DATA is the input data. For the dynamic programming algorithms such as lcs and matc,
please see the respective entries in the following list; for other algorithms, it is the
file name containing the actual input data.
Runs the algorithm ALGO. Currently ALGO can be one of:
bst operations on binary search trees
rbt operations on red-black trees (remove() is not implemented yet)
heap operations on heaps -- the remove operation on a heap always removes the top
element regardless of the argument
sbs stack-based search on graphs, a variant of depth first search
bfs breadth first search on graphs
prim Prim's minimal spanning tree on graphs
dijk Dijkstra's single-source shortest path on graphs
flwa Floyd-Warshall's all-pair shortest path on graphs (very, very slow)
dom 2-dimensional point domination
graham Graham's scan for convex hull
lcs longest common subsequence -- it requires two strings as the command line
arguments. For example, "algotutor -a lcs AGCTATACGATGACT GTCAGTATAGTCATATG"
matc optimal matrix chain multiplication -- it requires an alternating sequence of
integers and matrix names as the command line arguments. For example, "algotutor -a
matc 32 A 35 B 24 C 30 D 36 E 25 F 40 G 34 H 35" means finding the optimal
multiplication sequence of the chain of matrices: A of size 32 by 35, B of size 35 by
24, ... H of size 34 by 35.
Use VERTEX as the starting vertex (for sbs, bfs, prim, and dijk)
Display step STEP as the initial image.
Dump the picture into FILENAME as a ps file and exit immediately without going into
This code is distributed under the GNU General Public License
Chao-Kuei Hung ckhung AT ofset DOT org
Please see /usr/share/doc/algotutor/doc/ for examples and the full set of documentations.
perl v5.26.1 2018-02-19 ALGOTUTOR(1)