https://github.com/serpent7776/msquare

https://github.com/serpent7776/msquare

awk fun rectangle

Last synced: about 1 month ago
JSON representation

• Host: GitHub
• URL: https://github.com/serpent7776/msquare
• Owner: serpent7776
• License: bsd-2-clause
• Created: 2016-07-24T21:09:04.000Z (over 9 years ago)
• Default Branch: master
• Last Pushed: 2016-09-05T21:03:22.000Z (over 9 years ago)
• Last Synced: 2025-01-18T07:31:34.241Z (about 1 year ago)
• Topics: awk, fun, rectangle
• Language: Awk
• Size: 5.86 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
msquare

=======

Small awk script solving following puzzle:

Input is a rectangle of numbers. First row and first column specify target sum

of corresponding column/row.  The task is to remove some values from rectangle

so that sums of rows/column match with values given in first column/row. Values

at first row/column cannot be modified.

    #  4 10 6    -- these values specifies sums of corresponding columns

    2  1 2  3

    10 4 5  6

    8  7 8  9

    |

    \- these values specifies sums of corresponding rows

Simple input data is given in simple.data file:

    #  4 10 6

    2  1 2  3

    10 4 5  6

    8  7 8  9

Feeding above file to msquare.awk with `cat simple.data | awk -f msquare.awk`

will produce:

    # 4 10 6

    2 _ 2 _

    10 4 _ 6

    8 _ 8 _