Motzkin numbers: Difference between revisions
→{{header|ALGOL 68}}: Simplify the formatting code6
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# left-pads a string to at least n characters #
PROC pad left = ( STRING s, INT n )STRING:
IF INT len = ( UPB s - LWB s ) + 1; len >= n THEN s ELSE ( ( n - len ) * " " ) + s FI;
# show the Motzkin numbers #
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