// const head = new ListNode(2, new ListNode(1, new ListNode(5)));
Perhaps next time you are writing a command line application that's downloading lots of files in parallel, or doing some similar kind of parallel task, you could write a similar Ansi-escape-code-based progress bar so the user can see how their command is progressing.
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During the ”snowball Earth” period about 700m years ago, Earth’s climate shut down. The planet was encased in ice and insulated from seasonal variations: spring, summer, autumn and winter all stopped. Or at least that was the theory.
allocation of exactly the right size. If the number of items exceeds