CCC '18 J2 - Occupy parking

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Points: 3
Time limit: 3.0s
Memory limit: 256M

Problem type
Canadian Computing Competition: 2018 Stage 1, Junior #2

You supervise a small parking lot which has N parking spaces.

Yesterday, you recorded which parking spaces were occupied by cars and which were empty.

Today, you recorded the same information.

How many of the parking spaces were occupied both yesterday and today?

Input Specification

The first line of input contains the integer N (1 \le N \le 100). The second and third lines of input contain N characters each. The second line of input records the information about yesterday's parking spaces, and the third line of input records the information about today's parking spaces. Each of these 2N characters will either be C to indicate an occupied space or . to indicate it was an empty parking space.

Output Specification

Output the number of parking spaces which were occupied yesterday and today.

Sample Input 1

5
CC..C
.CC..

Sample Output 1

1

Explanation for Sample Output 1

Only the second parking space from the left was occupied yesterday and today.

Sample Input 2

7
CCCCCCC
C.C.C.C

Sample Output 2

4

Explanation for Sample Output 2

The first, third, fifth, and seventh parking spaces were occupied yesterday and today.


Comments


  • 0
    The_Cool_Guy  commented on July 31, 2021, 3:28 p.m.

    This is hard. Can anyone give me a hint? My langulage is python 3.


  • 0
    The_Cool_Guy  commented on July 31, 2021, 3:20 p.m.

    I am confused about the second output. Shouldn't be 3?


    • 0
      ayay9  commented on July 31, 2021, 4:37 p.m.

      Count the Cs not the .


  • 0
    Agrim1101  commented on July 6, 2021, 8:31 a.m.

    Aren't the sample outputs wrong? Sample output 1 should be 5 and sample output 2 should be 11. Isn't it?


    • 0
      Marshmellon  commented on July 6, 2021, 9:27 a.m.

      Read the output specification again. Output the number of parking spaces which were occupied yesterday and today. I think you are thinking to count how many parking spots were occupied yesterday and today combined.


      • 0
        Agrim1101  commented on July 6, 2021, 10:25 a.m.

        oh! yes i thought that only! and that was the reason why my code was wrong too


  • 3
    Orion222  commented on April 12, 2020, 5:57 p.m.

    bruh why my code doesnt work in the judge? It works on my ide


    • 1
      Jonathan_Uy  commented on April 12, 2020, 6:48 p.m. edited

      The first line of input contains the integer N, right now your code reads the first line and stores it in "yesterday".