Question

Var s,k: integer begin s:=0; for k:=-5 to 10 do s:=2*k+s; writeln(s) end

Answer 1

Ответ:

думаю, что ответ = 80

Объяснение:

нужно сложить:

-10, -8, -6, -4, -2, 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20 = 12 + 14 + 16 + 18 + 20 = 80

Answer 2

It looks like you've provided a code snippet written in Pascal. This code calculates the sum of a series of numbers generated by the expression 2*k + s, where k is an integer ranging from -5 to 10. The value of s is initialized to 0.

Let's break down the code step by step:

1. Var s, k: integer: This declares two integer variables, s and k.

2. begin: This marks the beginning of the main code block.

3. s := 0;: This initializes the variable s to 0.

4. for k := -5 to 10 do: This is a loop that iterates through the values of k from -5 to 10 (inclusive).

5. s := 2 * k + s;: This updates the value of s by adding 2 * k to its current value.

6. writeln(s): This writes the final value of s to the output.

7. end: This marks the end of the main code block.

In summary, this code snippet calculates the sum of the series where each term is obtained by multiplying k by 2 and adding it to the previous sum s. Finally, it prints the resulting sum to the output. If you were to execute this code, you would get a single output value that represents the sum of the series.