Question

Вычеслить сумму всех двух значных чисел в Поскале пожалусто

Answer 1

// PascalABC.NET 3.1, сборка 1179 от 29.02.2016
begin
  Writeln('Сумма=',Range(10,99).Sum)
end.

Результат выполнения программы:
Сумма=4905

Answer 2

Calculation of the Sum of All Two-Digit Numbers in Pascal

To calculate the sum of all two-digit numbers in Pascal, we can use a simple formula. The formula for finding the sum of an arithmetic series is:

Sum = (n/2) * (first term + last term)

In this case, the first term is 10 and the last term is 99. So, we can substitute these values into the formula:

Sum = (90/2) * (10 + 99)

Simplifying this equation gives us:

Sum = 45 * 109

Calculating this expression gives us the sum of all two-digit numbers in Pascal:

Sum = 4905

Therefore, the sum of all two-digit numbers in Pascal is 4905.