Problems of the day

danfimov · Feb 5, 2021 · ce1ac01 · ce1ac01
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diff --git a/Python Developer/HyperJob Agency/Problems/A single-element tuple/main.py b/Python Developer/HyperJob Agency/Problems/A single-element tuple/main.py
@@ -0,0 +1 @@
+singleton = ([0, 1, 1, 2, 3, 5, 8, 13, 21],)
diff --git a/Python Developer/HyperJob Agency/Problems/A single-element tuple/task-info.yaml b/Python Developer/HyperJob Agency/Problems/A single-element tuple/task-info.yaml
@@ -0,0 +1,14 @@
+type: code
+files:
+- name: main.py
+  visible: true
+  text: |-
+    # fix the code below
+    singleton = ([0, 1, 1, 2, 3, 5, 8, 13, 21])
+  learner_created: false
+feedback_link: https://hyperskill.org/learn/step/7470#comment
+status: Solved
+feedback:
+  message: <html>Correct solution</html>
+  time: Fri, 05 Feb 2021 06:52:15 UTC
+record: -1
diff --git a/Python Developer/HyperJob Agency/Problems/A single-element tuple/task-remote-info.yaml b/Python Developer/HyperJob Agency/Problems/A single-element tuple/task-remote-info.yaml
@@ -0,0 +1,2 @@
+id: 7470
+update_date: Sat, 09 Jan 2021 19:43:40 UTC
diff --git a/Python Developer/HyperJob Agency/Problems/A single-element tuple/task.html b/Python Developer/HyperJob Agency/Problems/A single-element tuple/task.html
@@ -0,0 +1,12 @@
+<h2>A single-element tuple</h2>
+<html>
+ <head></head>
+ <body>
+  <p>Alice tried to define a <code class="java">singleton</code> tuple with the first and only item <code class="java">[0, 1, 1, 2, 3, 5, 8, 13, 21]</code>. Alas, one small detail is missing here. Fix the code Alice wrote.</p> 
+  <p>You are <em>NOT</em> supposed to create a new variable for the tuple or print anything.</p>
+ </body>
+</html><br><br><font color="gray">Memory limit: 256 MB</font><br><font color="gray">Time limit: 15 seconds</font><br><br>
+<b>Caution</b><br><br>
+You may see errors in your code or execution results due to missing context. Don’t worry about it, just write the solution and press Check.
+<br><br>
+<a href="https://hyperskill.org/learn/step/7462">Show topic summary</a>
diff --git a/Python Developer/HyperJob Agency/Problems/Find beautiful identity/main.py b/Python Developer/HyperJob Agency/Problems/Find beautiful identity/main.py
@@ -0,0 +1,5 @@
+def object_with_beautiful_identity():
+    for i in range(10_000):
+        # Change the next line
+        if id(i) % 1000 == 888:
+            return i
diff --git a/Python Developer/HyperJob Agency/Problems/Find beautiful identity/task-info.yaml b/Python Developer/HyperJob Agency/Problems/Find beautiful identity/task-info.yaml
@@ -0,0 +1,17 @@
+type: code
+files:
+- name: main.py
+  visible: true
+  text: |-
+    def object_with_beautiful_identity():
+        for i in range(10_000):
+            # Change the next line
+            if ...:
+                return i
+  learner_created: false
+feedback_link: https://hyperskill.org/learn/step/8084#comment
+status: Solved
+feedback:
+  message: <html>Correct solution</html>
+  time: Fri, 05 Feb 2021 07:00:15 UTC
+record: -1
diff --git a/Python Developer/HyperJob Agency/Problems/Find beautiful identity/task-remote-info.yaml b/Python Developer/HyperJob Agency/Problems/Find beautiful identity/task-remote-info.yaml
@@ -0,0 +1,2 @@
+id: 8084
+update_date: Mon, 18 Jan 2021 06:58:07 UTC
diff --git a/Python Developer/HyperJob Agency/Problems/Find beautiful identity/task.html b/Python Developer/HyperJob Agency/Problems/Find beautiful identity/task.html
@@ -0,0 +1,19 @@
+<h2>Find beautiful identity</h2>
+<html>
+ <head></head>
+ <body>
+  <p>Write a function that returns an object whose identity ends with 888.</p> 
+  <p>Iterate numbers from 0 to 10 000 and check their identity via <code class="java">id()</code> to find a value ending with <code class="java">...888</code>.</p> 
+  <p><button class="btn-sm btn-outline-secondary" onclick="getElementById('hint-279').style.display='inline'"> Hint </button> </p>
+  <div id="hint-279" style="display:none;">
+   You can use the 
+   <code class="java">%</code> operator to check the last three digits, i.e 
+   <code class="java">54321 % 1000 = 321</code>
+  </div>
+  <p></p>
+ </body>
+</html><br><br><font color="gray">Memory limit: 256 MB</font><br><font color="gray">Time limit: 15 seconds</font><br><br>
+<b>Caution</b><br><br>
+You may see errors in your code or execution results due to missing context. Don’t worry about it, just write the solution and press Check.
+<br><br>
+<a href="https://hyperskill.org/learn/step/8077">Show topic summary</a>
diff --git a/Python Developer/HyperJob Agency/Problems/Flying high/main.py b/Python Developer/HyperJob Agency/Problems/Flying high/main.py
@@ -0,0 +1,4 @@
+name = input()
+
+# Save the identity number of `name` here
+id_card = id(name)
diff --git a/Python Developer/HyperJob Agency/Problems/Flying high/task-info.yaml b/Python Developer/HyperJob Agency/Problems/Flying high/task-info.yaml
@@ -0,0 +1,16 @@
+type: code
+files:
+- name: main.py
+  visible: true
+  text: |-
+    name = input()
+
+    # Save the identity number of `name` here
+    id_card = ...
+  learner_created: false
+feedback_link: https://hyperskill.org/learn/step/8289#comment
+status: Solved
+feedback:
+  message: <html>Correct solution</html>
+  time: Fri, 05 Feb 2021 06:58:51 UTC
+record: -1
diff --git a/Python Developer/HyperJob Agency/Problems/Flying high/task-remote-info.yaml b/Python Developer/HyperJob Agency/Problems/Flying high/task-remote-info.yaml
@@ -0,0 +1,2 @@
+id: 8289
+update_date: Fri, 21 Aug 2020 18:18:16 UTC
diff --git a/Python Developer/HyperJob Agency/Problems/Flying high/task.html b/Python Developer/HyperJob Agency/Problems/Flying high/task.html
@@ -0,0 +1,12 @@
+<h2>Flying high</h2>
+<html>
+ <head></head>
+ <body>
+  <p>It's time for fantastic adventures! You are going to another planet on a giant spaceship. Each large ship needs a large crew, so there's no chance of knowing everyone in person.</p> 
+  <p>Help the captain to identify the crew. Read a person's name from the input and find the identity integer.</p>
+ </body>
+</html><br><br><font color="gray">Memory limit: 256 MB</font><br><font color="gray">Time limit: 15 seconds</font><br><br>
+<b>Caution</b><br><br>
+You may see errors in your code or execution results due to missing context. Don’t worry about it, just write the solution and press Check.
+<br><br>
+<a href="https://hyperskill.org/learn/step/8077">Show topic summary</a>
diff --git a/Python Developer/HyperJob Agency/Problems/Nested/main.py b/Python Developer/HyperJob Agency/Problems/Nested/main.py
@@ -0,0 +1,7 @@
+for key in children.keys():
+    if key == 'Emily':
+        children[key] = {'profession': 'artist', 'age': 5}
+    elif key == 'Adam':
+        children[key] = {'profession': 'astronaut', 'age': 9}
+    else:
+        children[key] = {'profession': 'programmer', 'age': 14}
diff --git a/Python Developer/HyperJob Agency/Problems/Nested/task-info.yaml b/Python Developer/HyperJob Agency/Problems/Nested/task-info.yaml
@@ -0,0 +1,12 @@
+type: code
+files:
+- name: main.py
+  visible: true
+  text: '# please work with the variable children'
+  learner_created: false
+feedback_link: https://hyperskill.org/learn/step/9146#comment
+status: Solved
+feedback:
+  message: <html>Correct solution</html>
+  time: Fri, 05 Feb 2021 06:41:22 UTC
+record: -1
diff --git a/Python Developer/HyperJob Agency/Problems/Nested/task-remote-info.yaml b/Python Developer/HyperJob Agency/Problems/Nested/task-remote-info.yaml
@@ -0,0 +1,2 @@
+id: 9146
+update_date: Thu, 16 Jul 2020 08:20:21 UTC
diff --git a/Python Developer/HyperJob Agency/Problems/Nested/task.html b/Python Developer/HyperJob Agency/Problems/Nested/task.html
@@ -0,0 +1,15 @@
+<h2>Nested</h2>
+<html>
+ <head></head>
+ <body>
+  <p>Imagine, there are three children in a family and they wrote down what they want to be when they grow up:</p> 
+  <pre><code class="language-python">children = {'Emily': 'artist', 'Adam': 'astronaut', 'Nancy': 'programmer'}</code></pre> 
+  <p>Let's say you want to store not only the profession they have chosen, but also their age: Emily is 5, Adam is 9, and Nancy is 14. To do so, you can create nested dictionaries for each key in the outer dictionary.</p> 
+  <p>For each name, create a nested dictionary with the keys <code class="language-python">'profession'</code> and <code class="language-python">'age'</code>, modify the dictionary <code class="language-python">children</code> but don't print it.</p> 
+  <p><strong>NB:</strong> write the age as an integer.</p>
+ </body>
+</html><br><br><font color="gray">Memory limit: 256 MB</font><br><font color="gray">Time limit: 15 seconds</font><br><br>
+<b>Caution</b><br><br>
+You may see errors in your code or execution results due to missing context. Don’t worry about it, just write the solution and press Check.
+<br><br>
+<a href="https://hyperskill.org/learn/step/6481">Show topic summary</a>
diff --git a/Python Developer/HyperJob Agency/Problems/Print book info/main.py b/Python Developer/HyperJob Agency/Problems/Print book info/main.py
@@ -0,0 +1,9 @@
+def print_book_info(title, author=None, year=None):
+    if author and year:
+        print(f'"{title}" was written by {author} in {year}')
+    elif author:
+        print(f'"{title}" was written by {author}')
+    elif year:
+        print(f'"{title}" was written in {year}')
+    else:
+        print(f'"{title}"')
diff --git a/Python Developer/HyperJob Agency/Problems/Print book info/task-info.yaml b/Python Developer/HyperJob Agency/Problems/Print book info/task-info.yaml
@@ -0,0 +1,28 @@
+type: code
+files:
+- name: main.py
+  visible: true
+  text: |-
+    def print_book_info(title, author=None, year=None):
+        #  Write your code here
+        pass
+  learner_created: false
+feedback_link: https://hyperskill.org/learn/step/8085#comment
+status: Failed
+feedback:
+  message: |
+    Failed test #2 of 7. Wrong answer
+
+    This is a sample test from the problem statement!
+
+    Test input:
+    title: Crime and Punishment
+    author: None
+    year: 1866
+    Correct output:
+    "Crime and Punishment" was written in 1866
+
+    Your code output:
+    "Crime and Punishment"
+  time: Fri, 05 Feb 2021 07:04:46 UTC
+record: -1
diff --git a/Python Developer/HyperJob Agency/Problems/Print book info/task-remote-info.yaml b/Python Developer/HyperJob Agency/Problems/Print book info/task-remote-info.yaml
@@ -0,0 +1,2 @@
+id: 8085
+update_date: Fri, 08 Jan 2021 06:37:09 UTC
diff --git a/Python Developer/HyperJob Agency/Problems/Print book info/task.html b/Python Developer/HyperJob Agency/Problems/Print book info/task.html
@@ -0,0 +1,19 @@
+<h2>Print book info</h2>
+<html>
+ <head></head>
+ <body>
+  <p>Your task is to write a function <code class="java">print_book_info(title, author=None, year=None)</code> that prints information about a book. Arguments <code class="java">author</code> and <code class="java">year</code> are optional, so be ready that they might equal to <code class="java">None</code>.</p> 
+  <p>You don't have to read the input. The information about a book will be passed to your function, and it should output it in the right format.</p> 
+  <p>See the samples below to understand the output format.</p> 
+  <p></p>
+  <div class="alert alert-warning">
+   The knowledge of 
+   <strong>if-elif-else</strong> statements is expected in this task. If it's not the case, please proceed to the next challenge.
+  </div>
+  <p></p>
+ </body>
+</html><br><b>Sample Input:</b><br><pre><code class="language-no-highlight">title: War and Peace<br>author: Leo Tolstoy<br>year: 1869</code></pre><br><b>Sample Output:</b><br><pre><code class="language-no-highlight">"War and Peace" was written by Leo Tolstoy in 1869</code></pre><br><br><b>Sample Input:</b><br><pre><code class="language-no-highlight">title: Crime and Punishment<br>author: None<br>year: 1866</code></pre><br><b>Sample Output:</b><br><pre><code class="language-no-highlight">"Crime and Punishment" was written in 1866</code></pre><br><br><b>Sample Input:</b><br><pre><code class="language-no-highlight">title: The Chronicles of Narnia<br>author: C. S. Lewis<br>year: None</code></pre><br><b>Sample Output:</b><br><pre><code class="language-no-highlight">"The Chronicles of Narnia" was written by C. S. Lewis</code></pre><br><br><b>Sample Input:</b><br><pre><code class="language-no-highlight">title: Harry Potter<br>author: None<br>year: None</code></pre><br><b>Sample Output:</b><br><pre><code class="language-no-highlight">"Harry Potter"</code></pre><br><br><br><font color="gray">Memory limit: 256 MB</font><br><font color="gray">Time limit: 15 seconds</font><br><br>
+<b>Caution</b><br><br>
+You may see errors in your code or execution results due to missing context. Don’t worry about it, just write the solution and press Check.
+<br><br>
+<a href="https://hyperskill.org/learn/step/8077">Show topic summary</a>
diff --git a/Python Developer/HyperJob Agency/Problems/lesson-info.yaml b/Python Developer/HyperJob Agency/Problems/lesson-info.yaml
@@ -10,3 +10,8 @@ content:
 - How long is that word?
 - Incomplete implementation
 - Running total
+- Nested
+- A single-element tuple
+- Flying high
+- Find beautiful identity
+- Print book info