From 7d6e5a9e7646e9254fdbaf7f3a3cac47c567f44f Mon Sep 17 00:00:00 2001 From: Mohammad Sajid Anwar Date: Mon, 29 Jul 2024 11:46:29 +0100 Subject: - Added solutions by Eric Cheung. - Added solutions by Thomas Kohler. - Added solutions by PokGoPun. - Added solutions by Mark Anderson. - Added solutions by Feng Chang. - Added solutions by E. Choroba. --- .../luca-ferrari/pljava/src/main/java/Task1.java | 27 ++++++++++++++++++++++ .../luca-ferrari/pljava/src/main/java/Task2.java | 15 ++++++++++++ 2 files changed, 42 insertions(+) create mode 100644 challenge-277/luca-ferrari/pljava/src/main/java/Task1.java create mode 100644 challenge-277/luca-ferrari/pljava/src/main/java/Task2.java (limited to 'challenge-277/luca-ferrari/pljava/src/main/java') diff --git a/challenge-277/luca-ferrari/pljava/src/main/java/Task1.java b/challenge-277/luca-ferrari/pljava/src/main/java/Task1.java new file mode 100644 index 0000000000..157decedd7 --- /dev/null +++ b/challenge-277/luca-ferrari/pljava/src/main/java/Task1.java @@ -0,0 +1,27 @@ +public static int task1_pljava( String[] words1, String[] words2 ) throws SQLException { + logger.log( Level.INFO, "Entering pwc277.task1_pljava" ); + + final Map counting = new HashMap(); + + Stream.of( words1 ).forEach( current -> { + Integer[] count = { 0, 0 }; + counting.putIfAbsent( current, count ); + count = counting.get( current ); + count[ 0 ]++; + counting.put( current, count ); + } ); + + + Stream.of( words2 ).forEach( current -> { + Integer[] count = { 0, 0 }; + counting.putIfAbsent( current, count ); + count = counting.get( current ); + count[ 1 ]++; + counting.put( current, count ); + } ); + + return (int) counting.entrySet().stream().filter( current -> { + Integer[] count = current.getValue(); + return count[ 0 ] == count[ 1 ] && count[ 0 ] == 1; + } ).count(); +} diff --git a/challenge-277/luca-ferrari/pljava/src/main/java/Task2.java b/challenge-277/luca-ferrari/pljava/src/main/java/Task2.java new file mode 100644 index 0000000000..87c0dde2d0 --- /dev/null +++ b/challenge-277/luca-ferrari/pljava/src/main/java/Task2.java @@ -0,0 +1,15 @@ +public static final int task2_pljava( int[] numbers ) throws SQLException { + logger.log( Level.INFO, "Entering pwc277.task2_pljava" ); + + final int[] c = new int[]{ 0 }; + IntStream.range( 0, numbers.length - 1 ) + .forEach( i -> { + c[ 0 ] += IntStream.range( i + 1, numbers.length ) + .filter( j -> { + return numbers[ i ] != numbers[ j ] + && Math.abs( numbers[ i ] - numbers[ j ] ) < Math.min( numbers[ i ], numbers[ j ] ); + } ).count(); + } ); + + return c[ 0 ]; +} -- cgit