WORD LADDER +========+ Time: 30 minutes - 1 hour Difficulty: Hard Languages: Any +========+ Given two words and a list of words, implement a function that finds the length of the shortest sequence of transformations from the start word to the end word such that only one letter can be changed at a time, and each transformed word must exist in the given list of words.
WORD LADDER +========+ Time: 30 minutes - 1 hour Difficulty: Hard Languages: Any +========+ Given two words and a list of words, implement a function that finds the length of the shortest sequence of transformations from the start word to the end word such that only one letter can be changed at a time, and each transformed word must exist in the given list of words.
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Pinterest (PINS) closed at $71.75 in the latest trading session, marking a -0.18% move from the prior day. This change lagged the S&P 500's daily gain of 0.1%. Meanwhile, the Dow gained 0.9%, and the Nasdaq, a tech-heavy index, lost 0.59%.
Heading into today, shares of the digital pinboard and shopping tool company had lost 17.41% over the past month, lagging the Computer and Technology sector's loss of 5.38% and the S&P 500's gain of 0.71% in that time.
Investors will be hoping for strength from PINS as it approaches its next earnings release. The company is expected to report EPS of $0.07, up 170% from the prior-year quarter. Our most recent consensus estimate is calling for quarterly revenue of $467.87 million, up 72.05% from the year-ago period.
How Does Bitcoin Mining Work?
Bitcoin mining is the process of adding new transactions to the Bitcoin blockchain. It’s a tough job. People who choose to mine Bitcoin use a process called proof of work, deploying computers in a race to solve mathematical puzzles that verify transactions.To entice miners to keep racing to solve the puzzles and support the overall system, the Bitcoin code rewards miners with new Bitcoins. “This is how new coins are created” and new transactions are added to the blockchain, says Okoro.
Programming Challenges How to be a breathtaking Programmer from de
