چالش شماره18 صفحه شطرنج را در نظر بگیرد. در این صفحه جانمایی بر اساس سطر و ستون مشخص می شود. برای مثال a1 ، d5 و ... . برنامه ای بنویسید که سطر و ستون را از کاربر دریافت کند و بر اساس آن سفید یا مشکی بودن خانه را اعلام کند. برنامه فقط موقعیت های صحیح را دریافت می کند و برای موقعیت های اشتباه پیام خطای سفارشی نمایش می دهد.
چالش شماره18 صفحه شطرنج را در نظر بگیرد. در این صفحه جانمایی بر اساس سطر و ستون مشخص می شود. برای مثال a1 ، d5 و ... . برنامه ای بنویسید که سطر و ستون را از کاربر دریافت کند و بر اساس آن سفید یا مشکی بودن خانه را اعلام کند. برنامه فقط موقعیت های صحیح را دریافت می کند و برای موقعیت های اشتباه پیام خطای سفارشی نمایش می دهد.
The SSE was the first modern stock exchange to open in China, with trading commencing in 1990. It has now grown to become the largest stock exchange in Asia and the third-largest in the world by market capitalization, which stood at RMB 50.6 trillion (US$7.8 trillion) as of September 2021. Stocks (both A-shares and B-shares), bonds, funds, and derivatives are traded on the exchange. The SEE has two trading boards, the Main Board and the Science and Technology Innovation Board, the latter more commonly known as the STAR Market. The Main Board mainly hosts large, well-established Chinese companies and lists both A-shares and B-shares.
How to Invest in Bitcoin?
Like a stock, you can buy and hold Bitcoin as an investment. You can even now do so in special retirement accounts called Bitcoin IRAs. No matter where you choose to hold your Bitcoin, people’s philosophies on how to invest it vary: Some buy and hold long term, some buy and aim to sell after a price rally, and others bet on its price decreasing. Bitcoin’s price over time has experienced big price swings, going as low as $5,165 and as high as $28,990 in 2020 alone. “I think in some places, people might be using Bitcoin to pay for things, but the truth is that it’s an asset that looks like it’s going to be increasing in value relatively quickly for some time,” Marquez says. “So why would you sell something that’s going to be worth so much more next year than it is today? The majority of people that hold it are long-term investors.”
