Help in solution approach
Difference between en1 and en2, changed 2 character(s)
Can anybody please help me with this problem. I am not able to understand editorial also. Any other solution approaches are also welcomed. Thanks↵
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Problem link: [problem 40220C](https://codeforces.me/problemset/problem//420/C)

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  Rev. Lang. By When Δ Comment
en2 English Dr_John_WATSON 2022-06-29 17:21:02 2 Tiny change: '[problem 402C](https:/' -> '[problem 420C](https:/'
en1 English Dr_John_WATSON 2022-06-29 17:20:21 252 Initial revision (published)