**No Idea! Python**

### Problem Statement :

There is an array of n integers. There are also 2 disjoint sets, A and B, each containing m integers. You like all the integers in set A and dislike all the integers in set B. Your initial happiness is o. For each i integer in the array, if i belons to A, you add 1 to your happiness. If i belong to B, you add -1 to your happiness. Otherwise, your happiness does not change. Output your final happiness at the end. Note: Since A and B are sets, they have no repeated elements. However, the array might contain duplicate elements. Constraints: 1. 1<=n<=10^5 2. 1<=m<=10^5 3. 1<=any integer in the input <=10^9 Input Format: The first line contains integers n and m separated by a space. The second line contains n integers, the elements of the array. The third and fourth lines contain m integers, A and B, respectively. Output Format: Output a single integer, your total happiness.

### Solution :

` ````
Solution in C :
n,m=list(map(int, input().split()))
ns=list(map(int, input().split()))
h=set(map(int, input().split()))
s=set(map(int, input().split()))
res=0
for x in ns:
if x in h:
res+=1
elif x in s:
res-=1
print(res)
```

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