commit

Python Basics/04_Variables.py

@@ -13,6 +13,8 @@
 print("x = ",x)
 print("y = ",y)
 
+arr = [1,2,3,4,5,6]
+print(arr.__iter__())
 
 
 

Python Basics/MiniProjects/6_Diagonal_Difference.py

@@ -0,0 +1,29 @@
+#!/bin/python3
+# Given a square matrix, calculate the absolute difference between the sums of its diagonals.
+
+import math
+import os
+import random
+import re
+import sys
+
+# Complete the diagonalDifference function below.
+def diagonalDifference(arr):
+    size = len(arr[0]) - 1 
+    print('size:',size)
+    lrd = rld = 0
+    for i in range(0,size+1):
+            print('arr[{0}][{1}]={2}'.format(i,i,arr[i][i]))
+            lrd += arr[i][i]
+            x=size-i
+            print('arr[{0}][{1}]={2}'.format(i,x,arr[i][x]))
+            rld += arr[i][(size-i)]
+    print('rld',rld)    
+    print('lrd',lrd)    
+    return abs(lrd-rld)
+
+arr = [[1,2,3],
+       [4,5,6],
+       [7,8,9]]
+
+print(diagonalDifference(arr))

Python Basics/MiniProjects/7_Staircase.py

@@ -0,0 +1,8 @@
+def staircase(n):
+    for i in range(0,n):
+        times = n-i-1
+        rem = n-times
+        out = " "*times + '#'*rem
+        print(out)
+
+staircase(8)

Python Basics/MiniProjects/8_Time_Conversion.py

@@ -0,0 +1,14 @@
+def timeConversion(s):
+    ampm = ''.join(list(s)[-2:])
+    hours, mins, secs = s.replace(ampm,'').split(':')
+    if int(hours) <12 and int(mins) <=59 and int(secs) <=59:
+        if ampm == 'PM':
+            hours = int(hours) + 12
+        elif ampm == 'AM' and int(hours)==12:
+            hours = 0
+
+    return '{0}:{1}:{2}'.format(str(hours).zfill(2),str(mins).zfill(2),str(secs).zfill(2))
+
+print(timeConversion('12:45:54PM'))
+print(timeConversion('01:45:54AM'))
+print(timeConversion('00:45:54AM'))