I have 2 Lists, yhe first one includes all the numbers from 1 to 10.

listA={1,2,3,4,5,6,7,8,9,10}. 

The second includes random numbers, like

listB={2,10,2,5,7,15,1000,7,25,600}. 

I want to find an algorithm that will take any number of the second list listB and compare it to all numbers in listA. If the numbers equals I"ll get 1 as a result. If not it will be 0. As a final result I would like to sum all equal numbers.

Here, for example we have the result 6 because we can find 2 (twice), 7 (twice), 5 and 10 in the two lists. I need a general way because my lists includes data of 10,000 numbers.

Regards. Danny

I have 2 Lists. The first one includes all the numbers from 1 to 10.

listA={1,2,3,4,5,6,7,8,9,10}

The second includes random numbers, like this:

listB={2,10,2,5,7,15,1000,7,25,600}

I want to find an algorithm that will take any number of the second list listB and compare it to all numbers in listA. If the number in listB is equal to a number in listA, I"ll get 1 as a result. If not it will be 0. As a final result I would like to sum all equal numbers.

Here, for example we have the result 6 because we can find 2 (twice), 7 (twice), 5 and 10 in the two lists. I need a general way because my lists includes data of 10,000 numbers.

OK....I"ll try to be more clear. I have 2 Lists. The first one includes all the numbers from 1 to 10. A={1,2,3,4,5,6,7,8,9,10}. The second includes Random numbers, like B={2,10,2,5,7,15,1000,7,25,600}. I want to find an algorithm that will take any number of the second list (List B) and compare it to all numbers in List A. If the numbers equals I"ll get 1 as a result. If not it will be 0. As a final result I would like to sum all equal numbers. Here, for example we have the result 6 because we can find 2 (twice), 7 (twice), 5 and 10 in the two lists. Actually, I need a general way because my lists includes data of 10,000 numbers. Regards. Danny

I have 2 Lists, yhe first one includes all the numbers from 1 to 10.

listA={1,2,3,4,5,6,7,8,9,10}. 

The second includes random numbers, like

listB={2,10,2,5,7,15,1000,7,25,600}. 

I want to find an algorithm that will take any number of the second list listB and compare it to all numbers in listA. If the numbers equals I"ll get 1 as a result. If not it will be 0. As a final result I would like to sum all equal numbers.

Here, for example we have the result 6 because we can find 2 (twice), 7 (twice), 5 and 10 in the two lists. I need a general way because my lists includes data of 10,000 numbers. 

Regards. Danny

Suppose I have 2equal length lists or tables with random numbers between i= 1….n, Let's say A={20, 7, 400, 56…………}, B={7, 12, 1000, 87,….} I would like to have an algorithm that choose each of the elements in Table A and match it with every element in Table B. If the numbers are the same I would like to count it, If not it stay Null. In other words, the result will be the summation of equal number elements. If they are 35 so I'll get 35 as a result. Can someone help with the right algorithm?

OK....I"ll try to be more clear. I have 2 Lists. The first one includes all the numbers from 1 to 10. A={1,2,3,4,5,6,7,8,9,10}. The second includes Random numbers, like B={2,10,2,5,7,15,1000,7,25,600}. I want to find an algorithm that will take any number of the second list (List B) and compare it to all numbers in List A. If the numbers equals I"ll get 1 as a result. If not it will be 0. As a final result I would like to sum all equal numbers. Here, for example we have the result 6 because we can find 2 (twice), 7 (twice), 5 and 10 in the two lists. Actually, I need a general way because my lists includes data of 10,000 numbers. Regards. Danny