Submit solution
Points:
1.50
Time limit:
3.0s
Memory limit:
512M
Input:
stdin
Output:
stdout
Problem source:
Problem type
Allowed languages
C, C++, Go, Java, Kotlin, Pascal, PyPy, Python, Rust, Scratch
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Sample Input 1
6 7
_ _ _ _ _ _ _
| | _ _| _ |
| | |_ _| |_| |
| |_ _ _| _ _|
| | _ _| | |
| | |_ _| | |
|_|_ _ _|_|_ _|
6 3 7 2 2 2
Sample Output 1
1
Sample Input 2
2 3
_ _ _
| |
|_ _ _|
-1 -1
Sample Output 2
3
Sample Input 3
3 3
_ _ _
| _ |
| | | |
|_|_|_|
-1 1 1
Sample Output 3
1
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