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#!python
#
# Perl Weekly Challenge 333
# Task 1
#
# See <https://perlweeklychallenge.org/blog/perl-weekly-challenge-333>
#
import sys
# task implementation
# the return value will be printed
def task_1( args ):
coords = []
for i in range( 0, len( args ) - 1 ):
if i % 2 != 0:
continue
x = int( args[ i ] )
y = int( args[ i + 1 ] )
current = {}
current[ 'x' ] = x
current[ 'y' ] = y
coords.append( current )
first = coords[ 0 ]
second = coords[ 1 ]
for i in range( 2, len( coords ) ):
current = coords[ i ]
if ( ( current[ 'x' ] - first[ 'x' ] ) * ( first[ 'y' ] - second[ 'y' ] ) ) != ( ( current[ 'y' ] - second[ 'y' ] ) * ( first[ 'x' ] - second[ 'x' ] ) ):
return False
return True
# invoke the main without the command itself
if __name__ == '__main__':
print( task_1( sys.argv[ 1: ] ) )
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