Merge pull request #8826 from simongreen-net/master

Simon's solution to challenge 237

6 files changed, 134 insertions, 2 deletions

diff --git a/challenge-237/sgreen/README.md b/challenge-237/sgreen/README.md
index f06edcdb27..8aa6cc5481 100644
--- a/challenge-237/sgreen/README.md
+++ b/challenge-237/sgreen/README.md
@@ -1,3 +1,3 @@
-# The Weekly Challenge 235
+# The Weekly Challenge 237
 
-Blog: [Adding and removing integers](https://dev.to/simongreennet/adding-and-removing-integers-3i4g)
+Blog: [Seize the greatness](https://dev.to/simongreennet/seize-the-greatness-38n0)
diff --git a/challenge-237/sgreen/blog.txt b/challenge-237/sgreen/blog.txt
new file mode 100644
index 0000000000..2ef81294f5
--- /dev/null
+++ b/challenge-237/sgreen/blog.txt
@@ -0,0 +1 @@
+https://dev.to/simongreennet/seize-the-greatness-38n0
\ No newline at end of file
diff --git a/challenge-237/sgreen/perl/ch-1.pl b/challenge-237/sgreen/perl/ch-1.pl
new file mode 100755
index 0000000000..03a4f5674c
--- /dev/null
+++ b/challenge-237/sgreen/perl/ch-1.pl
@@ -0,0 +1,35 @@
+#!/usr/bin/env perl
+
+use strict;
+use warnings;
+use feature 'say';
+use experimental 'signatures';
+
+use Date::Calc qw(Day_of_Week Days_in_Month);
+
+sub main ( $year, $month, $week, $dofw ) {
+    # Day of the week for the first of the month (1 - Monday, 7 - Sunday)
+    my $first_weekday = Day_of_Week( $year, $month, 1 );
+
+    # To get the first day of week we take the diff between the two values. If
+    #  it is negative, add 7 days
+    my $day_of_month = 1 + $dofw - $first_weekday;
+    if ( $day_of_month < 1 ) {
+        $day_of_month += 7;
+    }
+
+    # Now add the weeks
+    $day_of_month += ( $week - 1 ) * 7;
+
+    if ( $day_of_month > Days_in_Month( $year, $month ) ) {
+        # This date does not exist
+        say 0;
+    }
+    else {
+        # Print the day of month
+        say $day_of_month;
+    }
+
+}
+
+main(@ARGV);
\ No newline at end of file
diff --git a/challenge-237/sgreen/perl/ch-2.pl b/challenge-237/sgreen/perl/ch-2.pl
new file mode 100755
index 0000000000..1a5428cef8
--- /dev/null
+++ b/challenge-237/sgreen/perl/ch-2.pl
@@ -0,0 +1,32 @@
+#!/usr/bin/env perl
+
+use strict;
+use warnings;
+use feature 'say';
+use experimental 'signatures';
+
+use List::Util qw(min max);
+use List::MoreUtils 'firstidx';
+
+sub main (@ints) {
+    my @sorted_ints = sort { $b <=> $a } @ints;
+    my $count = 0;
+
+    foreach my $i (@sorted_ints) {
+        # If there isn't a solution, exit the loop
+        if (min(@ints) >= $i) {
+            last;
+        }
+
+        # Find the position of the maximum value < i, and delete it
+        my $m = max(grep {$_ < $i} @ints);
+        my $idx = firstidx { $_ == $m } @ints;
+        splice(@ints, $idx, 1);
+
+        ++$count;
+    }
+    
+    say $count;
+}
+
+main(@ARGV);
\ No newline at end of file
diff --git a/challenge-237/sgreen/python/ch-1.py b/challenge-237/sgreen/python/ch-1.py
new file mode 100755
index 0000000000..3c13419a0b
--- /dev/null
+++ b/challenge-237/sgreen/python/ch-1.py
@@ -0,0 +1,35 @@
+#!/usr/bin/env python3
+
+import sys
+from datetime import date, timedelta
+
+
+def main(year, month, week, dofw):
+    # Get the first of the month
+    dte = date(year, month, 1)
+
+    # Day of the week for the first of the month (1 - Monday, 7 - Sunday)
+    first_weekday = dte.isoweekday()
+
+    # To get the first day of week we take the diff between the two values. If
+    #  it is negative, add 7 days
+    add_days = dofw - first_weekday
+    if add_days < 0:
+        add_days += 7
+
+    # Now add the weeks
+    add_days += (week-1) * 7
+
+    new_date = dte + timedelta(days=add_days)
+    if new_date.month != dte.month or new_date.year != dte.year:
+        # This date does not exist
+        print(0)
+    else:
+        # Print the day of month
+        print(new_date.day)
+
+
+if __name__ == '__main__':
+    # Convert input into integers
+    array = [int(n) for n in sys.argv[1:]]
+    main(*array)
diff --git a/challenge-237/sgreen/python/ch-2.py b/challenge-237/sgreen/python/ch-2.py
new file mode 100755
index 0000000000..51dbdc3f26
--- /dev/null
+++ b/challenge-237/sgreen/python/ch-2.py
@@ -0,0 +1,29 @@
+#!/usr/bin/env python3
+
+import sys
+
+
+def main(ints):
+    sorted_ints = sorted(ints, reverse=True)
+    count = 0
+
+    for i in sorted_ints:
+        # If there isn't a solution, exit the loop
+        if min(ints) >= i:
+            break
+
+        # Find the position of the maximum value < i, and delete it
+        m = max(j for j in ints if j < i)
+        idx = ints.index(m)
+        del ints[idx]
+
+        count += 1
+
+    # Print the solution
+    print(count)
+
+
+if __name__ == '__main__':
+    # Convert input into integers
+    array = [int(n) for n in sys.argv[1:]]
+    main(array)