Educational Codeforces Round 54 (Rated for Div. 2) E. Vasya and a Tree （树上差分） - Code World

Educational Codeforces Round 54 (Rated for Div. 2) E. Vasya and a Tree （树上差分）

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Educational Codeforces Round 54 (Rated for Div. 2) E. Vasya and a Tree （树上差分）

Educational Codeforces Round 69 (Rated for Div. 2) E. Culture Code dp (transfer segment tree) or the shortest count

Educational Codeforces Round 36 (Rated for Div. 2) E. Physical Education Lessons (Dynamic Open Point Line Segment Tree)

Educational Codeforces Round 104 (Rated for Div. 2) E. Cheap Dinner (line segment tree optimization dp)

Educational Codeforces Round 72 (Rated for Div. 2) E (segment tree, thinking)

Educational Codeforces Round 80 (Rated for Div. 2) E

Educational Codeforces Round 75 (Rated for Div. 2) E

Educational Codeforces Round 99 (Rated for Div. 2)（A-E）

Educational Codeforces Round 144 (Rated for Div. 2) E

Educational Codeforces Round 69 (Rated for Div. 2) E. Culture Code

Educational Codeforces Round 71 (Rated for Div. 2)-E. XOR Guessing-交互题

E. XOR Guessing 交互题 Educational Codeforces Round 71 (Rated for Div. 2)

Educational Codeforces Round 71 (Rated for Div. 2)E. XOR Guessing

Educational Codeforces Round 65 (Rated for Div. 2) E. Range Deleting (double pointer thinking +)

E. Array Shrinking.Educational Codeforces Round 83 (Rated for Div. 2)

Educational Codeforces Round 43 (Rated for Div. 2) E. Well played!

Codeforces_Educational Codeforces Round 94 (Rated for Div. 2)

Educational Codeforces Round 73 (Rated for Div. 2) F (tree line, a scan line)

Educational Codeforces Round 81 (Rated for Div. 2) F (segment tree)

Educational Codeforces Round 102 (Rated for Div. 2) D (Thinking & Line Segment Tree)

Educational Codeforces Round 136 (Rated for Div. 2)A~D (simulation, number of combinations\game, depth of tree)

Educational Codeforces Round 66 (Rated for Div. 2) A

Educational Codeforces Round 66 (Rated for Div. 2)

Educational Codeforces Round 67 (Rated for Div. 2)

Educational Codeforces Round 69 (Rated for Div. 2) D

Educational Codeforces Round 67 (Rated for Div. 2) C

Educational Codeforces Round 67 (Rated for Div. 2) A B C

Educational Codeforces Round 69 (Rated for Div. 2) A~D Sloution

Educational Codeforces Round 69 (Rated for Div. 2)

Educational Codeforces Round 61 (Rated for Div. 2)(VP)

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