Find the sum of unique numbers in a list.

• Create an empty set to store unique numbers

• Loop through the list and add each number to the set

• Sum up the numbers in the set

a=[1,2,3,4,1,2,100]
n=[]
for i in a:
    if i not in n:
        n.append(i)
print(n)
sum=0
for i in n:
    sum+=i
print(sum)

a=[1,2,3,4,1,2,100]
s=set(a)
sum=0
for i in s:
    sum+=i
print(sum)