Problem of the Day
A new programming or logic puzzle every Mon-Fri

Rainbows tend to be pretty cool to look at. If you're lucky you'll even find a pot of gold at the end of one. Today's problem is to create a program that generates a random RGB hex value (#7A340E) then prints out the next 100 values (#7A340F, #7A3410, etc.) after that. Afterwards it should print out "POT OF GOLD!!" and then exit.

Comments:

• Dan - 10 years, 7 months ago

  Quick javascript ```javascript var r = ~~(Math.random() * 255), g = ~~(Math.random() * 255), b = ~~(Math.random() * 255); var currentDigit = 0; console.log("#" + r.toString(16) + g.toString(16) + b.toString(16)); for(var i = 0; i < 100; i++) { if(b >= 254) currentDigit++; if(g >= 254) currentDigit++; b = (b+1) % 255; if(currentDigit==1) g = (g+1) % 255; if(currentDigit==2) r = (r+1) % 255;

  console.log("#" + r.toString(16) + g.toString(16) + b.toString(16));
  

  } console.log("POT OF GOLD"); ```

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• Dan Brinkman - 10 years, 7 months ago

  Whoops not logged in, here's the javascript with proper formatting

  var r = ~~(Math.random() * 255), g = ~~(Math.random() * 255), b = ~~(Math.random() * 255);
  var currentDigit = 0;
  console.log("#" + r.toString(16) + g.toString(16) + b.toString(16));
  for(var i = 0; i < 100; i++)
  {
      if(b >= 254)
          currentDigit++;
      if(g >= 254)
          currentDigit++;
      b = (b+1) % 255;
      if(currentDigit==1)
          g = (g+1) % 255;
      if(currentDigit==2)
          r = (r+1) % 255;
  
      console.log("#" + r.toString(16) + g.toString(16) + b.toString(16));
  }
  console.log("POT OF GOLD");
  

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• Pyro - 10 years, 7 months ago

  Python solution

  import random
  
  RGB=[0,0,0]
  for i in range(3):
      RGB[i]= format(random.randint(0,255), '02X')
  
  for i in range(100):
      print  "#"+RGB[0]+RGB[1]+RGB[2]
      RGB[2]=format(int(RGB[2], 16)+1, '02X')
      if int(RGB[2],16)>255:
          RGB[2]=format(0, '02X')
  
  print "Pot of gold!"
  
  

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• Anonymous - 10 years, 6 months ago

  #python 2.7
  import random
  x = random.randint(0, 16777215)
  i = 1
  while i <= 10:
      print '#'+ hex(x+i)[2:8].upper()
      i = i + 1
  print "POT OF GOLD!!"
  

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