Merge branch 'master' of github.com:vitekzkytek/PythonDataIES

02_Seminar/seminar2_exercises.ipynb

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+    "# Seminar 1\n",
+    "\n",
+    "by Martin Hronec\n",
+    "\n",
+    "(27th of February)"
+   ]
+  },
+  {
+   "attachments": {},
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+   "source": [
+    "### input\n",
+    "* prompt the user for their name and age \n",
+    "* then calculate the year in which the user will turn 100 years old and print the result.\n",
+    "\n",
+    "```\n",
+    "What is your name? John\n",
+    "What is your age? 30\n",
+    "John, you will turn 100 years old in the year 2090.\n",
+    "```\n",
+    "\n",
+    "**Hint** use `input()` and `datetime.datetime.now()` methods"
+   ]
+  },
+  {
+   "attachments": {},
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "### For loops\n",
+    "* print multiplication table from 1 to 10"
+   ]
+  },
+  {
+   "attachments": {},
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "### Merge dictionaries\n",
+    "Create 2 different dictionaries and merge them."
+   ]
+  },
+  {
+   "attachments": {},
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "### Conditionals\n",
+    "\n",
+    " Calculate income tax for the given income by adhering to the below rules:\n",
+    " * first 5k, tax rate 0%\n",
+    " * next 10k, tax rate 10%\n",
+    " * remainning, tax rate 20%\n",
+    "\n"
+   ]
+  },
+  {
+   "attachments": {},
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+   "source": [
+    "### Comprehensions\n",
+    "\n",
+    "1. Write a Python program that takes a list of numbers and creates a dictionary where the keys are the numbers and the values are their squares.\n",
+    "2. Take the dictionary from the part above, and changes keys for values (and vice versa) using list comprehension.\n",
+    "3. Create new dictionary by changing values from dictionary above to be strings containning original number followed with letter \"p\". Keys should remain the same."
+   ]
+  },
+  {
+   "attachments": {},
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "### Dictionary manipulation\n",
+    "\n",
+    "1. Create a dictionary of 1000 students. Keys should be random strings of lenght 5 containning random characters  and values should be random grades (from 1 to 5). \n",
+    "**Hint**: use module `string` and module `random`\n",
+    "2. Modify functionality written in the point above so that keys are random string of lengths from 3 to 10\n",
+    "3. Write a program that takes a dictionary of student names and their grades from the 1st part and calculates the average grade for the class\n",
+    "4. Also calculate number of times each grade has occurred."
+   ]
+  },
+  {
+   "attachments": {},
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "### Functions\n",
+    "\n",
+    "Turn what you've done in the previous exercise into functions. Don't write one monotholic function, split it logically."
+   ]
+  },
+  {
+   "attachments": {},
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "### Thinking stretching\n",
+    "\n",
+    "* Given an array of integers nums and an integer target, return indices of the two numbers such that they add up to target.\n",
+    "* You may assume that each input would have exactly one solution, and you may not use the same element twice.\n",
+    "* You can return the answer in any order."
+   ]
+  },
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