Задания 1. Remove 28 digits from the number 1234567891011121314151617181920 in order to get the greatest possible number. What is that number? 2. I used nine different digits to form 3…

In the Gregorian calendar, which was introduced in 1582, a year is considered a leap year if: ● it is not divisible by 100, but is divisible by 4; ●…