Submit solution
Points:
0.50
Time limit:
1.0s
Memory limit:
512M
Problem type
Allowed languages
C, C++, Go, Java, Kotlin, Pascal, PyPy, Python, Rust, Scratch
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Sample Input 1
1
4 2
Sample Output 1
2 1 3 4
Comments
can someone hint some idea for this problem D? just about constructive algo with the power of 2 or some others?