Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Thomas J. Brock is a CFA and CPA with more ...

the same number of 0's and 1's, and all the 0's and all the 1's in these substrings are grouped consecutively. Substrings that occur multiple times are counted the number of times they occur.

/start - show the bot's description and contact information /subscribe url - subscribe to feed /unsubscribe url - unsubscribe from feed /list_subscriptions - list your subscriptions /help - show ...