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2D Range Queries problems
Problem Name Online Judge Contest Difficulty Level
1 The Untended Antiquity Categories Codeforces Codeforces Round #439 (Div. 2) 7
2 Anton and Permutation Categories Codeforces Codeforces Round #404 (Div. 2) 7
3 Iahub and Xors Categories Codeforces Codeforces Round #198 (Div. 1) 7
4 Subtree Minimum Query Categories Codeforces Educational Codeforces Round 33 (Rated for Div. 2) 8
5 Andryusha and Nervous Barriers Categories Codeforces ?????????? 2017 - ????? (?????? ??? ??????-??????????) 9