ICPC 2019 vòng Quốc gia - J: Just Enough Bridges
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Points:
1.70
Time limit:
1.0s
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
2 3
1 1
1 2
2 2
Sample Output 1
1
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