Python program to find number of likes and dislikes
Alice and Bob made a list of topics and both of them voted if they like or dislike the topic. They wrote 0 to denote dislike and 1 to denote like. The task is to count the number of topics that both of them like or dislike. Examples:
Input: alice = “010101” bob = “101101” Output: 3 alice and bob both like 4th and 6th topics and dislike the 5th topic. Hence, the output is 3. Input: alice = “111111” bob = “000000” Output: 0 There are no common likes or dislikes between alice and bob. Hence, the output is 0.
Input: alice = “110000” bob = “110011” Output: 4 alice and bob both like 1st and 2nd topics and dislike 3rd and 4th topics. Hence, the result is 4.
- First, we have to iterate through each character of the string consisting of the likes and dislikes of alice.
- Then, we have to compare it with the corresponding entry of the string consisting of the likes and dislikes of bob.
- Finally, we will count the number of similar entries and print.
Below is the implementation.
3 0 4
The Time and Space Complexity for all the methods are the same:
Time Complexity: O(n)
Space Complexity: O(n)
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