Logic Building
# Take arrays
n1 = int(input("Enter size of first array: "))
arr1 = []
for i in range(n1):
arr1.append(int(input(f"Array1 element {i+1}: ")))
n2 = int(input("Enter size of second array: "))
arr2 = []
for i in range(n2):
arr2.append(int(input(f"Array2 element {i+1}: ")))
# Find common elements
common = []
for element in arr1:
if element in arr2 and element not in common:
common.append(element)
print(f"Common elements: {common}")Output
Enter size of first array: 4 Array1 element 1: 1 Array1 element 2: 2 Array1 element 3: 3 Array1 element 4: 2 Enter size of second array: 3 Array2 element 1: 2 Array2 element 2: 3 Array2 element 3: 4 Common elements: [2, 3]
Check each element of first array in second.
Key Concepts:
- Iterate through first array
- Check if exists in second
- Avoid duplicates