update

Author: yashprsin

Linux-shell/09_bash-tutorials---arithmetic-operations.sh

@@ -0,0 +1,2 @@
+read -p "Enter the expression: " exp
+printf "%.3f" $(echo $exp | bc -l)

algorithms/21_sock-merchant.py

@@ -0,0 +1,38 @@
+#!/bin/python3
+
+import math
+import os
+import random
+import re
+import sys
+
+#
+# Complete the 'sockMerchant' function below.
+#
+# The function is expected to return an INTEGER.
+# The function accepts following parameters:
+#  1. INTEGER n
+#  2. INTEGER_ARRAY ar
+#
+
+def sockMerchant(n, ar):
+    # Write your code here
+    my_dict = {i:ar.count(i) for i in ar}
+    rem = 0
+    for i in my_dict.values():
+        rem += i//2
+    return rem
+        
+
+if __name__ == '__main__':
+    fptr = open(os.environ['OUTPUT_PATH'], 'w')
+
+    n = int(input().strip())
+
+    ar = list(map(int, input().rstrip().split()))
+
+    result = sockMerchant(n, ar)
+
+    fptr.write(str(result) + '\n')
+
+    fptr.close()