Practice: Your First Program

Five problems, and every one of them is output only: no input to read, just the right text in exactly the right shape.

The judge compares your output with the expected answer character by character, so the details you would never notice by eye are the ones that decide the verdict:

• Copy the text exactly — capital letters, punctuation and spaces included. Hello, World! and Hello World! are different answers.
• End each line with "\n". Lines come from "\n", not from separate cout statements.
• Pictures are text too. For the ones drawn out of characters, count the spaces at the start of each line — they are part of the answer.

Start with the first problem and go in order; each one adds something the last one didn't.