Merge pull request #10 from coderpyaephyothant/212223lesson

coderpyaephyothant · web-flow · commit 0d7bcb088db0 · 2024-02-04T21:42:40.000+06:30
212223lesson
diff --git a/1718lesson.py b/1718lesson.py
@@ -0,0 +1,61 @@
+# Logical Operators
+# p = True
+# print('not p value is : ', not p)
+
+# Lesson18
+# Bitwise Operators
+#       Bitwise operators are used to compare (binary) numbers:
+
+# Bitwise AND
+a = 60
+b = 13
+c = 0
+c = a & b
+# print('bitwise and operation', c)
+
+#    60 /2 & 13/2 ,    2|60 - 0                     2|13 -1
+#                  2|30 - 0                      2|6 - 0
+#                     2|15 - 1                    2|3 -1 
+#                        2|7 - 1                   2|1
+#                          2|3 - 1
+#                            2|1
+                            # 1 1 1 1 0 0           # 1 1 0 1
+                            # 0 0 1 1 0 1    
+        #    Ans Bitwise &       0 0 0 0 1 1 0 0  = 12
+
+
+# Bitwise OR
+e = 60
+f = 13
+g = 0
+g = e | f
+# print('bitwise or operation', g)
+
+#                   111100
+#                   001101
+# Ans Bitwise |          00111101 = 61
+
+
+# Bitwise Nor
+a = ~ 10
+# print('Bitwise Nor', a)
+# format => - (num + 1 )
+
+# decimal to binary      2|10 - 0
+                        #    2|5 - 1
+                            # 2|2 -0
+                            #   2|1 
+                            #  1010 (need to add 1)
+                            #  -(1011)
+
+# Two's complement
+# 10 => 1010
+#   inverse => 0101 
+#    plus one =>       0110
+#  and then change plus to minus , minus to plus
+
+
+
+
+
+
diff --git a/1920lesson.py b/1920lesson.py
@@ -0,0 +1,34 @@
+# Xor RightShift Leftshifi
+a = 5
+b = 2
+c = a^b
+# print('Xor value is ', c)
+# 5 => 101
+# 2 => 10
+# 101
+#  10
+# 00000111 
+
+# Right shift >> more younger
+x = 10
+y = x>>2
+# print('right shift ', y)
+
+#  x => 00001010
+#  remove (right2place) and add two zero infront of 
+#   x => 00000010 (Answer)
+
+# Left shift << more older
+p = 15
+t = p << 3
+
+# print('Left shift value is ', t)
+
+#  p => 00001111
+# remove lefplace 01111 + 000
+#  p => 01111000
+
+
+
+
+
diff --git a/212223lesson.py b/212223lesson.py
@@ -0,0 +1,85 @@
+# Special Operators . . 
+#  1.Identity Operator
+#  - is , is not (memory location)
+#  2.Membership Operator
+
+# a = 10
+# b = 20
+# c = a is b  
+# print('memory location using is word : ', c)
+
+p = 10
+t = 10
+# if p is t:
+#     print('They are same location')
+# else:
+#     print('The are not the same location')
+# p = 20
+# if p is t:
+#     print('second time, They are same location')
+# else:
+#     print(' second time, They are not the same location')
+
+# if p is not t:
+#     print('they are not the same location')
+# else:
+#     print('they are same location')
+
+###### checking type by using is keyword
+
+w = type(p) is int
+# print('type() by is ', w)
+
+r = type(p) is not int
+# print('type() check by is not', r)
+
+y = type(p) is float
+# print('type() check by is for float',y)
+
+
+# String check
+
+u = 'Pyae Phyo Thant'
+o = 'Pyae Phyo Thant'
+# print(id(u),id(o))
+e = u is o
+# print('e',e)
+
+# if u is o:
+    # print('they are same location')
+# else:
+    # print('they are not the same location')
+
+# Membership
+#  - in , not in
+
+mylist = ["apple", "banana", "cherry"]
+checkItem = "banana" in mylist
+# print('check item has or not', checkItem)
+checkItem2 = "banana" not in mylist
+# print('check item not has', checkItem2)
+# def pver():
+#     return 0
+# print('return 0', pver())
+
+pptList1 = [1,2,3,4,5]
+pptList2 = [6,7,8,9]
+
+def overLap(pptList1,pptList2):
+    p = 0
+    t = 0
+    for i in pptList1:
+        p+=1
+    for i in pptList2:
+        t+=1
+    for i in range(0,p):
+        for j in range(0,t):
+            if pptList1[i] == pptList2[j]:
+                return 1
+    return 0
+    
+# Notes => if the return value is 0 => falsy!!!!
+if overLap(pptList1,pptList2):
+    print(overLap(pptList1,pptList2))
+else:
+    print('____________________')
