1 ###################
   2 ## EXAMPLE: strings 
   3 ###################
   4 #hi = "hello there"
   5 #name = "ana"
   6 #greet = hi + name  
   7 #print(greet)
   8 #greeting = hi + " " + name
   9 #print(greeting)
  10 #silly = hi + (" " + name)*3
  11 #print(silly)
  12 
  13 ####################
  14 ## EXAMPLE: output 
  15 ####################
  16 #x = 1
  17 #print(x)
  18 #x_str = str(x)
  19 #print("my fav number is", x, ".", "x=", x)
  20 #print("my fav number is", x_str + "." + "x=" + x_str)
  21 #print("my fav number is" + x_str + "." + "x=" + x_str)
  22 
  23 
  24 ####################
  25 ## EXAMPLE: input
  26 ####################
  27 #text = input("Type anything... ")
  28 #print(5*text)
  29 #num = int(input("Type a number... "))
  30 #print(5*num)
  31 
  32 
  33 ####################
  34 ## EXAMPLE: conditionals/branching 
  35 ####################
  36 #x = float(input("Enter a number for x: "))
  37 #y = float(input("Enter a number for y: "))
  38 #if x == y:
  39 #    print("x and y are equal")
  40 #    if y != 0:
  41 #        print("therefore, x / y is", x/y)
  42 #elif x < y:
  43 #    print("x is smaller")
  44 #elif x > y:
  45 #    print("y is smaller")
  46 #print("thanks!")
  47 
  48 
  49 
  50 ####################
  51 ## EXAMPLE: remainder 
  52 ####################
  53 #num = int(input("Enter a number: "))
  54 #if num % 2 == 0:
  55 #    print("number is even")
  56 #else:
  57 #    print("number is odd")
  58 
  59 
  60 ####################
  61 ## EXAMPLE: while loops 
  62 ## Try expanding this code to show a sad face if you go right
  63 ## twice and flip the table any more times than that. 
  64 ## Hint: use a counter
  65 ####################
  66 #n = input("You are in the Lost Forest\n****************\n****************\n :)\n****************\n****************\nGo left or right? ")
  67 #while n == "right" or n == "Right":
  68 #    n = input("You are in the Lost Forest\n****************\n******       ***\n  (╯°□°）╯︵ ┻━┻\n****************\n****************\nGo left or right? ")
  69 #print("\nYou got out of the Lost Forest!\n\o/")
  70 
  71 
  72 
  73 #n = 0
  74 #while n < 5:
  75 #    print(n)
  76 #    n = n+1
  77 
  78 
  79 ####################
  80 ## EXAMPLE: for loops
  81 ####################
  82 #for n in range(5):
  83 #    print(n)
  84 #
  85 #mysum = 0
  86 #for i in range(10):
  87 #    mysum += i
  88 #print(mysum)
  89 #
  90 #mysum = 0
  91 #for i in range(7, 10):
  92 #    mysum += i
  93 #print(mysum)
  94 #
  95 #mysum = 0
  96 #for i in range(5, 11, 2):
  97 #    mysum += i
  98 #    if mysum == 5:
  99 #        break
 100 #        mysum += 1
 101 #print(mysum)
 102 
 103 
 104 
 105 ####################
 106 ## EXAMPLE: perfect squares
 107 ####################
 108 #ans = 0
 109 #neg_flag = False
 110 #x = int(input("Enter an integer: "))
 111 #if x < 0:
 112 #    neg_flag = True
 113 #while ans**2 < x:
 114 #    ans = ans + 1
 115 #if ans**2 == x:
 116 #    print("Square root of", x, "is", ans)
 117 #else:
 118 #    print(x, "is not a perfect square")
 119 #    if neg_flag:
 120 #        print("Just checking... did you mean", -x, "?")
 121 
 122 
 123 ####################
 124 ## TEST YOURSELF!
 125 ## Modify the perfect squares example to print 
 126 ## imaginary perfect sqrts if given a negative num.
 127 ####################