10000 Jackson bin packing by joshuaguerin · Pull Request #33 · joshuaguerin/Answer-Set-Programming-Algorithms · GitHub
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Jackson bin packing #33
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Merged
merged 4 commits into from
Jun 4, 2025
Merged

Jackson bin packing #33

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abe6d55
Made generator for Bin Packing
mads1158 Jun 3, 2025
0f5c96d
Added a README to associated generator for Bin Packing
mads1158 Jun 3, 2025
aa2fa08
Updated generator.py useage documentation
mads1158 Jun 3, 2025
a3566a0
Added some documentation to outputs.
joshuaguerin Jun 4, 2025
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6 changes: 6 additions & 0 deletions Bin-Packing/gen/README.md
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# Problem: Bin-Packing Generator

## Description
The generator allows the user control over 2 variables, how many items to generate, and the max weight of the items.
It begins by establishing all the possible elements for the solver. Then it lists out each item individually and
randomly assigns a weight to each.
35 changes: 35 additions & 0 deletions Bin-Packing/gen/generate.py
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# File: generate.py
# Author: Jackson Madsen

# Description: Set generator for Bin Packing problem solver
# Use: python3 generate.py -n n -w w > filename.lp
# where: n is the number of items to generate
# w is the maximum weight of an item
# filename.lp is the location to save the instance file to
# Each of n and w can be omitted (Defaults n=10, w=5)
# The redirect (> filename.lp) can be omitted (to print to stdout)


import random
import argparse

# Process Arguments
parser = argparse.ArgumentParser()

parser.add_argument('-n', default = 10, type = int,
help = "The number of items to generate. (Default = 10)")

parser.add_argument('-w', default = 5, type = int,
help = "The maximum weight of an item, non-inclusive. (Default = 5)")

args = parser.parse_args()

print("% Possible items")
# Print all possible items
print(f"item(1..{args.n}).")
print()

print("% Item definitions\n% item(number, cost).")
# Assign weights to each individual item
for i in range(1, args.n + 1):
print(f"item({i}, {random.randint(1,args.w)}).")
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