How to multiply the element of a list by another list without using zip LinQ?

Question

Hello,

I am having an error message saying: sequence contains no elements.

Often it is link to LinQ.

How can i do the same as this var listM = lists.Zip(listv, (first, second) => first * second); without LinQ?

Thank you

Answer 1

@FranK Duc , Based on my test, I find that the code you provided can almost achieve your target.
Tested code:

 var list1 = new List<double>();  
        var list2 = new List<int>();  
        list1.Add(2.11);  
        list1.Add(3.22);  
        list1.Add(4.36);  
        list1.Add(2.03);  
        list2.Add(12);  
        list2.Add(13);  
        list2.Add(16);  
        list2.Add(9);  
        list2.Add(6);  
        var list3 = new List<double>();  
  
        for (int i = 0; i < Math.Min(list1.Count,list2.Count); i++)  
        {  
            list3.Add(list1[i]*list2[i]);  
        }  

Result:

What is your current question about the code?

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Answer 2

I find the way and it didn't solve my problem.

For those who would like to know how to do it:

var listD = new List<double>();

for (int i = 0; i < Math.Min(listv.Count, lists.Count); i++)
      listD.Add(listv[i] * lists[i]); 

foreach (var item in listD)
      Print("LISTD"+item);