1. Operatory porównania
    print( 5 == 3 )

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    2. Wartości logiczne
    print(2 ** 2 != 2 * 2)
    print(5 ** 2 != 2 ** 5)
    print("A"=="a")

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    3. Operatory logiczne
    print(2>3 or 10>5)
    print(2/3>1 or 2//3==0)
    print( 1==12**0 and str(1) == "1")
    
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    4. Instrukcja if
    def setSign(x):
      if x < 0:
          value = -1
      else:
          value = 1
      
      return value
    
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    5. Zakres
    def isWeekend(x):
      if x in (5, 6, 7):
          value = "Weekend!!!"
      else:
          value = "Bleeee!!!"
      
      return value

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    6. Klauzula else
    def whoWins(coyote, roadrunner):
      if coyote > roadrunner:
          winner = "Coyote"
      else:
          winner = "Roadrunner"
      
      return winner
    
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    7. Klauzula elif
    def constValue(constName):
      if constName == "Pi":
          value = 3.14159
      elif constName == "e":
          value = 2.71828
      elif constName == "gamma":
          value = 0.57721
      elif constName == "phi":
          value = 1.61803
      else:
          value = None
      
      return value

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    8. Ćwiczenie: dni tygodnia
    def dayOfWeek(x):
      if x == 1:
          return "Monday"
      elif x == 2:
          return "Tuesday"
      elif x == 3:
          return "Wednesday"
      elif x == 4:
          return "Thursday"
      elif x == 5:
          return "Friday"
      elif x == 6:
          return "Saturday"
      elif x == 7:
          return "Sunday"
      else:
          return "wrong value"
    
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    9. Ćwiczenie: czy parzysta
    def isEven(number):
      if number % 2 == 0:
          return True
      else:
          return False
          
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    10. Ćwiczenie: ustaw zawór
    def setValve(x):
      if x <= 100:
          return 0
      elif 100 < x <= 200:
          return 1
      elif 200 < x <= 400:
          return 2
      elif 400 < x <= 600:
          return 3
      elif 600 < x <= 800:
          return 4
      else:
          return 5

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    11. Oczyszczacz powietrza
    def setPower(pm25, pm10):
      if pm25 > 120 or pm10 > 200:
          return 5
      elif pm25 >= 85 or pm10 >= 141:
          return 4
      elif pm25 >= 61 or pm10 >= 101:
          return 3
      elif pm25 >= 37 or pm10 >= 61:
          return 2
      elif pm25 >= 13 or pm10 >= 21:
          return 1
      else:
          return 0
  
  
      if 0 <= pm10 <= 20:
          index_pm10 = 0
      elif 21 <= pm10 <= 60:
          index_pm10 = 1
      elif 61 <= pm10 <= 100:
          index_pm10 = 2
      elif 101 <= pm10 <= 140:
          index_pm10 = 3
      elif 141 <= pm10 <= 200:
          index_pm10 = 4
      else:
          index_pm10 = 5
          
      power_level = min(index_pm25, index_pm10)
      return power_level
 
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    12. Ćwiczenie: instalacja alarmowa
    def setAlarm(godzina, dzien_tygodnia):
      if (dzien_tygodnia >= 1 and dzien_tygodnia <= 4 and godzina >= 6 and godzina < 22) or \
         (dzien_tygodnia == 5 and godzina >= 6 and godzina < 18) or \
         (dzien_tygodnia == 6 and godzina >= 6 and godzina < 14):
          return False
      else:
          return True
    
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    13. Ćwiczenie: trójkąty
    def checkTriangle(pręt1, pręt2, pręt3):
      if pręt1 + pręt2 > pręt3 and pręt1 + pręt3 > pręt2 and pręt2 + pręt3 > pręt1:
          return True
      else:
          return False

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    14. Pętla while
    def printer_ctrl():
      while pc_leftover() > 5:
          pc_cut()
          pc_position()
          pc_print()
      pc_pause()

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    15. Ćwiczenie: Hail to the president!
    def play_anthem():
      note = get_note()
      while note != 0:
          play(note)
          note = get_note()

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    16. Ćwiczenie: kompresor
    def compressor(set_pressure):
      while get_pressure() < set_pressure:
          pump()

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    17. Ćwiczenie: maszyna tenisowa
    def shooting():
      while isBall():
          shoot()
    
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    18. Ćwiczenie: korytarz
    def route():
      x=front()
      while x>0:
          if left()>5000 and right()>5000 and front()>5000:
              return
          move()
          x=front()
          if x==0:
              if left()<=right() and right()>0:
                  turnR()
              elif left()>0:
                  turnL()
              x=front()
    
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    19. Skrócone operatory
    i = 0
    while i < 10:
        i += 1
        print(i)

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    20. Ćwiczenie - pole
    def maxPeriod(debt, equity):
      annual_interest_rate = 0.035
      years = 0
  
      while debt < equity:
          debt *= (1 + annual_interest_rate)
          years += 1
  
      return years

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    21. Korzystanie z funkcji
    def prize(day, month):
      days_in_month = [0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]
      leap_year = False
      total_prize = 0
      current_day = day
  
      while current_day <= days_in_month[month]:
          total_prize += current_day
          current_day += 1
  
      return total_prize