Last Friday of each month: Difference between revisions

m
→‎{{header|REXX}}: removed some blank lines, changed box gylphs. -- ~~~~
(→‎{{header|C sharp}}: Added implementation in C#.)
m (→‎{{header|REXX}}: removed some blank lines, changed box gylphs. -- ~~~~)
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This REXX program will find the last day-of-week (for any day) of all the months for any year.
<lang rexx>/*REXX program displays dates of last Fridays of each month for any year*/
 
parse arg yyyy
do j=1 for 12
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end /*j*/
exit /*stick a fork in it, we're done.*/
/*┌────────────────────────────────────────────────────────────────────┐
 
/*┌────────────────────────────────────────────────---─────────────────┐
│ lastDOW: procedure to return the date of the last day-of-week of │
│ any particular month of any particular year. │
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│ the month, bypassing the leapday mess). The last day-of-week is │
│ then obtained straightforwardly, or via subtraction. │
└────────────────────────────────────────────────────────────────────┘*/
└───────────────────────────────────────────────────---──────────────┘*/
 
lastdow: procedure; arg dow .,mm .,yy . /*DOW = day of week*/
parse arg a.1,a.2,a.3 /*orig args, errmsg*/