CODEWITHSUNDEEP
pythonlist
Dimitris Orfanos
Dimitris Orfanos

Reputation: 37

Add two lists of integers together into a 3rd list?

for example

list1=[1,2,3,4,5]
list2=[1,2,3,4,5]
..
list3=[2,4,6,8,10]

I've already tried something, but it pops me a message that says: out of range". here is my code:

for i in range(mikos):
    lista3[i]=lista1[i]+lista2[i]

print(lista3)

#'mikos' is the number of elements in each list

Upvotes: 2

Views: 118

Answers (3)

Tomasz Kaminski
Tomasz Kaminski

Reputation: 910

One way is to do:

from operator import add
map(add, list1, list2)

Another would be:

[x + y for x, y in zip(list1, list2)]

And yet another one is 

[sum(x) for x in zip(list1, list2)]

Upvotes: 1

saulspatz
saulspatz

Reputation: 5261

You can do this without a loop:

lista3 = [x+y for x,y in zip(lista1, lista2)]

Upvotes: 2

MartyIX
MartyIX

Reputation: 28648

Very simple approach is:

list1=[1,2,3,4,5]
list2=[1,2,3,4,5]    
list3 = []    
mikos = len(list1)

for i in range(mikos):
    list3.append(list1[i]+list2[i])

print(list3)

Upvotes: 1

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