Add a couple of exercises

abregman · abregman · commit 54403cb5be4d · 2022-04-17T22:32:03.000+03:00
diff --git a/README.md b/README.md
@@ -2,7 +2,7 @@
 
 :information_source: &nbsp;This repo contains questions and exercises to learn and practice Python
 
-:bar_chart: &nbsp;There are currently **53** exercises and questions
+:bar_chart: &nbsp;There are currently **60** exercises and questions
 
 # Python Exercises
 
@@ -43,13 +43,15 @@
 |Name|Objective & Instructions|Solution|Comments|
 |--------|--------|------|----|
 | True or False? | [Exercise](exercises/booleans/true_or_false.md) | [Solution](solutions/booleans/true_or_false.md) | |
+| Conversion | [Exercise](exercises/booleans/conversion.md) | [Solution](solutions/booleans/conversion.md) | |
 
 ## Strings
 
 |Name|Objective & Instructions|Solution|Comments|
 |--------|--------|------|----|
 | 22 times | [Exercise](exercises/hello_world/22_times.md) | | |
-| What is the result? | [Exercise](exercises/strings/what_is_the_result.md) | [Solution](solutions/strings/what_is_the_result.md) | |
+| What is the result? - Level 1 | [Exercise](exercises/strings/what_is_the_result_lvl_1.md) | [Solution](solutions/strings/what_is_the_result_lvl_1.md) | |
+| What is the result? - Level 2 | [Exercise](exercises/strings/what_is_the_result_lvl_2.md) | [Solution](solutions/strings/what_is_the_result_lvl_2.md) | |
 | Starts with a letter | [Exercise](exercises/strings/letter_start.md) | [Solution](solutions/strings/letter_start.md) | |
 | All Digits | [Exercise](exercises/strings/all_digits.md) | [Solution](solutions/strings/all_digits.md) | |
 | Removing Characters | [Exercise](exercises/strings/removing_characters.md) | [Solution](solutions/strings/removing_characters.md) | |
@@ -61,6 +63,9 @@
 |Name|Objective & Instructions|Solution|Comments|
 |--------|--------|------|----|
 | What is the result? | [Exercise](exercises/numbers/what_is_the_result.md) | [Solution](solutions/numbers/what_is_the_result.md) | |
+| Operations - Level 1 | [Exercise](exercises/numbers/operations_lvl_1.md) | [Solution](solutions/numbers/operations_lvl_1.md) | |
+| Operations - Level 2 | [Exercise](exercises/numbers/operations_lvl_2.md) | [Solution](solutions/numbers/operations_lvl_2.md) | |
+| Bases | [Exercise](exercises/numbers/bases.md) | [Solution](solutions/numbers/bases.md) | |
 | Palindrome | [Exercise](exercises/numbers/palindrome.md) | [Solution](solutions/numbers/palindrome.md) | |
 
 ## Lists
@@ -145,6 +150,8 @@
 
 |Name|Objective & Instructions|Solution|Comments|
 |--------|--------|------|----|
+| If True | [Exercise](exercises/improve_the_code/if_true.md) | [Solution](solutions/improve_the_code/if_true.md) | |
+| Walrus | [Exercise](exercises/improve_the_code/walrus.md) | [Solution](solutions/improve_the_code/walrus.md) | |
 | Vowel Letters | [Exercise](exercises/improve_the_code/vowel_letters.md) | [Solution](solutions/improve_the_code/vowel_letters.md) | |
 
 ## Misc
diff --git a/exercises/booleans/conversion.md b/exercises/booleans/conversion.md
@@ -0,0 +1,14 @@
+## Conversion
+
+What is the result of each of the following statements?
+
+1. `int(False)`
+2. `int(True)`
+3. `bool(0)`
+4. `bool(1)`
+5. `True + 2`
+6. `float(True)`
+
+## Solution
+
+Click [here](solutions/booleans/conversion.md) to view the solution
diff --git a/exercises/exceptions/what_exception_is_raised.md b/exercises/exceptions/what_exception_is_raised.md
@@ -4,3 +4,8 @@ For each of the following statement, specify what exception will be raised
 
 1. `'two' > 1`
 2. `ans = x + y`
+3. `chars = 'abc'; chars[5]`
+
+### Solution
+
+Click [here](solutions/exceptions/what_exception_is_raised.md) to view the solution.
diff --git a/exercises/improve_the_code/if_true.md b/exercises/improve_the_code/if_true.md
@@ -0,0 +1,17 @@
+## If True
+
+Improve the following block of code:
+
+```
+y = 0
+x = False
+
+if x == True:
+    y = y + 1
+if x == False:
+    y = y + 2
+```
+
+### Solution
+
+Click [here](solutions/improve_the_code/if_true.md) to view the solution
diff --git a/exercises/improve_the_code/walrus.md b/exercises/improve_the_code/walrus.md
@@ -0,0 +1,14 @@
+## Walrus
+
+Modify the following code so it will use the walrus operator:
+
+```python
+x = 50
+y = x - 20
+if y == 30:
+    print("super")
+```
+
+### Solution
+
+Click [here](solutions/improve_the_code/walrus.md) to view the solution
diff --git a/exercises/numbers/bases.md b/exercises/numbers/bases.md
@@ -0,0 +1,11 @@
+## Bases
+
+What is the result of each of the following statements:
+
+1. `0b10 + 0b10`
+2. `0o10 ** 3`
+3. `0x10 & 2`
+
+### Solution
+
+Click [here](solutions/numbers/bases.md) to view the solution
diff --git a/exercises/numbers/operations_lvl_1.md b/exercises/numbers/operations_lvl_1.md
@@ -0,0 +1,12 @@
+## Operations
+
+What is the result of the following operations in Python?
+
+1. `4 / 3`
+2. `4 / 0`
+3. `4 // 3`
+4. `4 // 0`
+
+### Solution
+
+Click [here](solutions/numbers/operations.md) to view the solution
diff --git a/exercises/numbers/operations_lvl_2.md b/exercises/numbers/operations_lvl_2.md
@@ -0,0 +1,15 @@
+## Operations - Level 2
+
+What will the following block of code will print?
+
+```
+x = 3
+x -= 1
+x += 5
+x **= 2.0
+x += 2 * (3 + 1)
+```
+
+### Solution
+
+Click [here](solutions/numbers/operations_lvl_2.md) to view the solution
diff --git a/exercises/strings/what_is_the_result.md b/exercises/strings/what_is_the_result.md
diff --git a/exercises/strings/what_is_the_result_lvl_1.md b/exercises/strings/what_is_the_result_lvl_1.md
@@ -0,0 +1,12 @@
+## What is the result? - Level 1
+
+What is the result of each of the following statements?
+
+1. `"abc"*3`
+2. `"abc"*2.5`
+3. `"abc"*2.0`
+4. `"abc"*True`
+5. `"abc"*False`
+6. `print("xy\tz")`
+7. `print("xy\"z\'")`
+8. `"qwer" "xyz"`
diff --git a/exercises/strings/what_is_the_result_lvl_2.md b/exercises/strings/what_is_the_result_lvl_2.md
@@ -0,0 +1,11 @@
+## What is the result? - Level 2
+
+What is the result of each of the following statements?
+
+1. `"123456"[0]`
+2. `"123456"[-1]`
+3. `print("\\a\\b\a\c")`
+
+### Solution
+
+Click [here](solutions/strings/what_is_the_result_lvl_2.md) to view the solution
diff --git a/solutions/booleans/conversion.md b/solutions/booleans/conversion.md
@@ -0,0 +1,19 @@
+## Conversion
+
+What is the result of each of the following statements?
+
+1. `int(False)`
+2. `int(True)`
+3. `bool(0)`
+4. `bool(1)`
+5. `True + 2`
+6. `float(True)`
+
+## Solution
+
+1. `0`
+2. `1`
+3. `False`
+4. `True`
+5. `3`
+6. `1.0`
diff --git a/solutions/exceptions/what_exception_is_raised.md b/solutions/exceptions/what_exception_is_raised.md
@@ -2,5 +2,12 @@
 
 For each of the following statement, specify what exception will be raised
 
-1. `'two' > 1` - TypeError
-2. `ans = x + y` - NameError
+1. `'two' > 1`
+2. `ans = x + y`
+3. `chars = 'abc'; chars[5]`
+
+### Solution
+
+1. TypeError
+2. NameError
+3. IndexError
diff --git a/solutions/improve_the_code/if_true.md b/solutions/improve_the_code/if_true.md
@@ -0,0 +1,23 @@
+## If True
+
+Improve the following block of code:
+
+```
+y = 0
+x = False
+
+if x == True:
+    y = y + 1
+if x == False:
+    y = y + 2
+```
+
+### Solution
+
+```
+x = False
+if x:
+    y = 1
+else:
+    y = 2
+```
diff --git a/solutions/improve_the_code/walrus.md b/solutions/improve_the_code/walrus.md
@@ -0,0 +1,18 @@
+## Walrus
+
+Modify the following code so it will use the walrus operator:
+
+```python
+x = 50
+y = x - 20
+if y == 30:
+    print("super")
+```
+
+### Solution
+
+```python
+x = 50
+if y := x - 20 == 30:
+   print("super")
+```
diff --git a/solutions/numbers/bases.md b/solutions/numbers/bases.md
@@ -0,0 +1,13 @@
+## Bases
+
+What is the result of each of the following statements:
+
+1. `0b10 + 0b10`
+2. `0o10 ** 3`
+3. `0x10 & 2`
+
+### Solution
+
+1. `4`
+2. `512`
+3. `0`
diff --git a/solutions/numbers/operations_lvl_1.md b/solutions/numbers/operations_lvl_1.md
@@ -0,0 +1,19 @@
+## Operations
+
+What is the result of the following operations in Python?
+
+1. `4 / 3`
+2. `4 // 3`
+3. `4 * 3`
+4. `4 ** 3`
+5. `4 *** 3`
+6. `4 % 3`
+
+### Solution
+
+1. `1.333333`
+2. `1`
+3. `12`
+4. `64`
+5. invalid syntax :) 
+6. `1`
diff --git a/solutions/numbers/operations_lvl_2.md b/solutions/numbers/operations_lvl_2.md
@@ -0,0 +1,15 @@
+## Operations - Level 2
+
+What will the following block of code will print?
+
+```
+x = 3
+x -= 1
+x += 5
+x **= 2.0
+x += 2 * (3 + 1)
+```
+
+### Solution
+
+`57.0`
diff --git a/solutions/strings/what_is_the_result.md b/solutions/strings/what_is_the_result.md
diff --git a/solutions/strings/what_is_the_result_lvl_1.md b/solutions/strings/what_is_the_result_lvl_1.md
@@ -0,0 +1,23 @@
+## What is the result? - Level 1
+
+What is the result of each of the following statements?
+
+1. `"abc"*3`
+2. `"abc"*2.5`
+3. `"abc"*2.0`
+4. `"abc"*True`
+5. `"abc"*False`
+6. `print("xy\tz")`
+7. `print("xy\"z\'")`
+8. `"qwer" "xyz"`
+
+### Solution
+
+1. `abcabcabc`
+2. `TypeError`
+3. `TypeError`
+4. `"abc"`
+5. `""`
+6. `xy	z`
+7. `xy"z'`
+8. `'qwerxyz'`
diff --git a/solutions/strings/what_is_the_result_lvl_2.md b/solutions/strings/what_is_the_result_lvl_2.md
@@ -0,0 +1,13 @@
+## What is the result? - Level 2
+
+What is the result of each of the following statements?
+
+1. `"123456"[0]`
+2. `"123456"[-1]`
+3. `print("\\a\\b\a\c")`
+
+### Solution
+
+1. `'1'`
+2. `'6'`
+3. `\a\b\c`
