Educational Codeforces Round 29 D. Yet Another Array Queries Problem
Educational Codeforces Round 30 D. Merge Sort
2017-2018 ACM-ICPC, NEERC, Southern Subregional Contest (Online Mirror, ACM-ICPC Rules, Teams Preferred) H. Palindromic Cut
2017-2018 ACM-ICPC, NEERC, Southern Subregional Contest (Online Mirror, ACM-ICPC Rules, Teams Preferred) K. Road Widening
Div 3
Double Replace
Russian Dolls
Root LCA Queries
Consecutive Remainders
Missing Numbers