Codeforces 200A,2B,154C,506D,274E

problem D of good bye 2016

706E (only problem I found throughout my contest life which could be solved with linked list)

https://www.hackerrank.com/contests/cisco-icode-round-2/challenges/sherlock-and-subarray

Couldnt solve it during the contest. Solved it a year after the contest was held after learning segment tree. Felt like a boss.

http://codeforces.me/problemset/problem/675/D

Everybody solved this question using set. I did it using segment tree. Felt like a boss again.

https://www.codechef.com/SNCKPB17/problems/SNGRAPH

Learnt about the concept of reverse DSU after failing to solve ABROADS on codechef and applied it to this problem during contest time.

773D - Perishable Roads, 793E - Problem of offices

https://code.google.com/codejam/contest/8294486/dashboard#s=p2

problem "C. Pony Express" from GCJ 2017 round 1B

https://csacademy.com/contest/archive/task/point-in-kgon

problem E from CSA round 34

Why so less comments? Symmetree

I really liked thinking and enjoyed solving 1814D - Balancing Weapons.

Probably https://oj.uz/problem/view/BOI18_genetics

https://codeforces.me/problemset/problem/1780/D I love interactive problems