Add Python solution to challenge 284

4 files changed, 96 insertions, 4 deletions

diff --git a/challenge-284/paulo-custodio/perl/ch-2.pl b/challenge-284/paulo-custodio/perl/ch-2.pl
index 6bb9662a88..4813ce73f0 100644
--- a/challenge-284/paulo-custodio/perl/ch-2.pl
+++ b/challenge-284/paulo-custodio/perl/ch-2.pl
@@ -43,4 +43,4 @@ while (@list2) {
 }
 push @output, sort {$a <=> $b} @list1;
 
-say "@output";
+say join ", ", @output;
diff --git a/challenge-284/paulo-custodio/python/ch-1.py b/challenge-284/paulo-custodio/python/ch-1.py
new file mode 100644
index 0000000000..cebd0835de
--- /dev/null
+++ b/challenge-284/paulo-custodio/python/ch-1.py
@@ -0,0 +1,44 @@
+#!/usr/bin/env python3
+
+# Challenge 284
+#
+# Task 1: Lucky Integer
+# Submitted by: Mohammad Sajid Anwar
+#
+# You are given an array of integers, @ints.
+#
+# Write a script to find the lucky integer if found otherwise return -1. If
+# there are more than one then return the largest.
+#
+#     A lucky integer is an integer that has a frequency in the array equal to
+#     its value.
+#
+# Example 1
+#
+# Input: @ints = (2, 2, 3, 4)
+# Output: 2
+#
+# Example 2
+#
+# Input: @ints = (1, 2, 2, 3, 3, 3)
+# Output: 3
+#
+# Example 3
+#
+# Input: @ints = (1, 1, 1, 3)
+# Output: -1
+
+import sys
+
+ints = [int(x) for x in sys.argv[1:]]
+count = {}
+for x in ints:
+    if x in count:
+        count[x] += 1
+    else:
+        count[x] = 1
+lucky = sorted(list(filter(lambda x:x == count[x], ints)))[::-1]
+if len(lucky) > 0:
+    print(lucky[0])
+else:
+    print(-1)
diff --git a/challenge-284/paulo-custodio/python/ch-2.py b/challenge-284/paulo-custodio/python/ch-2.py
new file mode 100644
index 0000000000..b51af0f0ac
--- /dev/null
+++ b/challenge-284/paulo-custodio/python/ch-2.py
@@ -0,0 +1,48 @@
+#!/usr/bin/env python3
+
+# Challenge 284
+#
+# Task 2: Relative Sort
+# Submitted by: Mohammad Sajid Anwar
+#
+# You are given two list of integers, @list1 and @list2. The elements in the
+# @list2 are distinct and also in the @list1.
+#
+# Write a script to sort the elements in the @list1 such that the relative
+# order of items in @list1 is same as in the @list2. Elements that is missing
+# in @list2 should be placed at the end of @list1 in ascending order.
+# Example 1
+#
+# Input: @list1 = (2, 3, 9, 3, 1, 4, 6, 7, 2, 8, 5)
+#        @list2 = (2, 1, 4, 3, 5, 6)
+# Ouput: (2, 2, 1, 4, 3, 3, 5, 6, 7, 8, 9)
+#
+# Example 2
+#
+# Input: @list1 = (3, 3, 4, 6, 2, 4, 2, 1, 3)
+#        @list2 = (1, 3, 2)
+# Ouput: (1, 3, 3, 3, 2, 2, 4, 4, 6)
+#
+# Example 3
+#
+# Input: @list1 = (3, 0, 5, 0, 2, 1, 4, 1, 1)
+#        @list2 = (1, 0, 3, 2)
+# Ouput: (1, 1, 1, 0, 0, 3, 2, 4, 5)
+
+import sys
+
+args = (" ".join(sys.argv[1:])).split(',')
+list1 = [int(x) for x in args[0].split()]
+list2 = [int(x) for x in args[1].split()]
+
+output = []
+while len(list2) > 0:
+    n = list2[0]
+    list2 = list2[1:]
+    for x in filter(lambda x:x == n, list1):
+        output.append(x)
+    list1 = list(filter(lambda x:x != n, list1))
+for x in sorted(list1):
+    output.append(x)
+
+print(", ".join([str(x) for x in output]))
diff --git a/challenge-284/paulo-custodio/t/test-2.yaml b/challenge-284/paulo-custodio/t/test-2.yaml
index f4d2db7f63..4d0548ddd5 100644
--- a/challenge-284/paulo-custodio/t/test-2.yaml
+++ b/challenge-284/paulo-custodio/t/test-2.yaml
@@ -2,14 +2,14 @@
   cleanup:
   args:     2 3 9 3 1 4 6 7 2 8 5 , 2 1 4 3 5 6
   input:
-  output:   2 2 1 4 3 3 5 6 7 8 9
+  output:   2, 2, 1, 4, 3, 3, 5, 6, 7, 8, 9
 - setup:
   cleanup:
   args:     3 3 4 6 2 4 2 1 3 , 1 3 2
   input:
-  output:   1 3 3 3 2 2 4 4 6
+  output:   1, 3, 3, 3, 2, 2, 4, 4, 6
 - setup:
   cleanup:
   args:     3 0 5 0 2 1 4 1 1 , 1 0 3 2
   input:
-  output:   1 1 1 0 0 3 2 4 5
+  output:   1, 1, 1, 0, 0, 3, 2, 4, 5