Submission ID Problem Status Score Time Memory Code / Answer files User Submit time
#10889 #2. 視頻推薦 Video Recommendation Accepted 100 2048 ms 27160 K Java / 473 B HKSC2023-179 2023-07-07 20:54:38
Show orginal code
import java.io.*;
public class Solution {
    public static void main(String[] args) throws IOException {
        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
        int n = Integer.parseInt(reader.readLine());
        int ans = 0;
        for (int i = 0; i < n; i++) {
            String temp = reader.readLine();
            int k = temp.equals("like") ? 1 : -1;
            ans = ans + k;
        }
        System.out.println(ans);
    }
}
Subtask #1
Accepted
Score: 100
Test case #1
Accepted
Score: 100
Time: 128 ms
Memory: 18300 KiB

Input file

10
dislike
like
dislike
like
dislike
like
like
dislike
like
dislike

Output file

0

Your output

0

System message

Exited with return code 0
Test case #2
Accepted
Score: 100
Time: 127 ms
Memory: 17900 KiB

Input file

10
dislike
dislike
like
dislike
dislike
dislike
dislike
like
dislike
like

Output file

-4

Your output

-4

System message

Exited with return code 0
Test case #3
Accepted
Score: 100
Time: 126 ms
Memory: 18048 KiB

Input file

10
like
like
like
like
like
dislike
like
like
like
like

Output file

8

Your output

8

System message

Exited with return code 0
Test case #4
Accepted
Score: 100
Time: 240 ms
Memory: 26280 KiB

Input file

99993
dislike
dislike
dislike
dislike
dislike
dislike
dislike
dislike
dislike
dislike
dis
<862503 bytes omitted>

Output file

-75099

Your output

-75099

System message

Exited with return code 0
Test case #5
Accepted
Score: 100
Time: 228 ms
Memory: 25592 KiB

Input file

99999
dislike
like
dislike
dislike
like
dislike
dislike
dislike
dislike
like
like
dislik
<824361 bytes omitted>

Output file

-49641

Your output

-49641

System message

Exited with return code 0
Test case #6
Accepted
Score: 100
Time: 246 ms
Memory: 26952 KiB

Input file

99997
like
like
dislike
like
dislike
like
like
like
dislike
like
like
dislike
dislike

<787113 bytes omitted>

Output file

-24819

Your output

-24819

System message

Exited with return code 0
Test case #7
Accepted
Score: 100
Time: 241 ms
Memory: 26944 KiB

Input file

99991
like
dislike
dislike
dislike
dislike
dislike
like
like
dislike
dislike
dislike
dis
<749790 bytes omitted>

Output file

33

Your output

33

System message

Exited with return code 0
Test case #8
Accepted
Score: 100
Time: 238 ms
Memory: 27160 KiB

Input file

99995
like
dislike
dislike
like
like
like
like
dislike
like
like
like
dislike
like
lik
<712221 bytes omitted>

Output file

25099

Your output

25099

System message

Exited with return code 0
Test case #9
Accepted
Score: 100
Time: 239 ms
Memory: 25556 KiB

Input file

99999
like
like
dislike
like
like
like
like
like
like
like
dislike
dislike
like
like

<674469 bytes omitted>

Output file

50287

Your output

50287

System message

Exited with return code 0
Test case #10
Accepted
Score: 100
Time: 235 ms
Memory: 26648 KiB

Input file

100000
like
like
dislike
like
like
dislike
like
like
like
like
dislike
like
like
like
<637720 bytes omitted>

Output file

74792

Your output

74792

System message

Exited with return code 0