You can check out the editorials from the links of each unedited problems. Also, you can now view other's submissions.

Problem List of the Contest

A: https://mirror.codeforces.com/contest/1749/problem/B

B: https://mirror.codeforces.com/contest/1680/problem/A

C: https://cses.fi/problemset/task/1750

D: https://mirror.codeforces.com/contest/1278/problem/C

E: https://mirror.codeforces.com/contest/1278/problem/A

F: https://mirror.codeforces.com/contest/1260/problem/B

G: https://mirror.codeforces.com/contest/1260/problem/C

H: https://mirror.codeforces.com/contest/1257/problem/D

I: https://mirror.codeforces.com/contest/1251/problem/A

J: https://mirror.codeforces.com/contest/1238/problem/B

K: https://mirror.codeforces.com/contest/1238/problem/C

L: https://mirror.codeforces.com/contest/1837/problem/F

M: https://mirror.codeforces.com/contest/1673/problem/E

N: https://mirror.codeforces.com/contest/1797/problem/D

Good luck, and happy coding!