finish 2 6kyu 1 5kyu

Author: sdwh

[5 kyu]Last digit of a large number.py

@@ -0,0 +1,23 @@
+def last_digit(n1, n2):
+    res = {            
+            1 : [1],
+            2 : [2,4,8,6],
+            3 : [3,9,7,1],
+            4 : [4,6],
+            5 : [5],
+            6 : [6],
+            7 : [7,9,3,1],
+            8 : [8,4,2,6],
+            9 : [9,1],
+            0 : [0]
+    }
+    n1 %= 10
+    if n2 == 0:
+        return 1
+    elif n1 in (1,5,6,0):
+        return n1
+    else:
+        return res[n1][n2%len(res[n1]) - 1]
+
+for i in range(0,5):
+    print(last_digit(34,i))    

[6 kyu] Playing with passphrases.py

@@ -0,0 +1,13 @@
+def play_pass(s, n):
+    res = ''
+    for c in map(ord,s):
+        if c in range(65,91):
+            res += chr((((c-65) + n) % 26) + 65)
+        elif c in range(97,123):
+            res += chr((((c-97) + n) % 26) + 97)
+        elif c in range(48,58):
+            res += str (abs(9 - int(chr(c))))
+        else:
+            res += str(chr(c))
+    res = ''.join([res[i].upper() if i % 2 == 0 else res[i].lower() for i in range(len(res))])
+    return res[::-1]

[6 kyu]Complete The Pattern #12.py

@@ -0,0 +1,17 @@
+def pattern(n):
+    if n <= 0:
+        return ''
+    if n == 1:
+        return '1'
+    res = []
+    pattern = [' '] * ( 2 * n -1)
+    for i in range(1,n):
+        temp = pattern[:]
+        temp[i-1] = temp[-i] = str(i%10)
+        res.append(''.join(temp))
+    pattern[n-1] = str(n%10)
+    res.append(''.join(pattern))
+    res += res[n-2::-1]    
+    return '\n'.join(res)
+
+print(pattern(1))