根据从键盘输入的数字 n 求从 1 到 n 的奇数与偶数平方和的乘积

Question

I'm new to the programming world and I'm learning C#. I have an algorithm given to me in expression language and I need to do it with C# .NET Framework console application, but I'm not very good at it. Can you help?

Here's the algorithm I'm talking about;

1. Start

2. int toplam, carpım, karetoplam

3. toplam=0

4. carpım=1

5. Read N

6.Cycle I=1, N, 1

7. if(N%2==1)

8. toplam=toplam+I

9. carpım=carpım*I

10. else

11. karetoplam=karetoplam+(I*I)

12. if over

13. cycle over

14. Cw toplam

15. Cw carpım

16. Cw karetoplam

17. Done

Answer 1

I only understood the title of your post not the text;) Code is untested. Could be optimized to 1 for-loop in 1 method.

Product of oddnumber from 1 to n?

long GetProductsOfOddNumbers(int n) {
   var product = 1L;
   for (var i = 1; i <= n; i++)  {
       if (i % 2 == 0) continue;
       product *= i;
    }
    return product;
}

Sum of squares of even numbers from 1 to n?

long GetSumOfSquaresOfEvenNumbers(int n) {
   var sum = 0L;
   for (var i = 1; i <= n; i++)  {
       if (i % 2 != 0) continue;
       sum += (i * i);
    }
    return sum ;
}