Is it possible to change email address of Codeforces account?

ThanksIn Advance

Any update about kharagpur regional 2020?

Can foreign team directly participate amritapuri regional or they have to qualify in preli?

Whats the possibility of amritapuri regional contest happen in offline mode?

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How to solve this? Tried a lot but didn’t come up an idea.

Problem Link: https://lightoj.com/problem/country-roads

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How to solve it recursively, is it possilbe or not? I tried a long time but dint came up a solution.

Problem Link: https://cses.fi/problemset/task/1636

And what does it mean my this line "the number of distinct ordered ways". It means increaing order or decreasing order?

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