Tags

BST 1
[CF] D. Broken BST - Educational Codeforces Round 19
Sqrt Trick 1
E. Array Queries - Educational Codeforces Round 19
中位数 2
[CF] D. Salary Changing - Educational Codeforces Round 75 (Rated for Div. 2) D. Med-imize - Codeforces Round 963 (Div. 2)
二叉树 1
[CF] D. Broken BST - Educational Codeforces Round 19
偏序 1
[CF] B. Find the Permutation - Codeforces Round 997 (Div. 2)
分类讨论 1
[CF] C. Three Garlands - Educational Codeforces Round 35 (Rated for Div. 2)
前缀后缀 1
[CF] C. You Are Given a WASD-string... - Educational Codeforces Round 70 (Rated for Div. 2)
单调栈 1
[LC] 3420. Count Non-Decreasing Subarrays After K Operations - Weekly Contest 432
双路归并 1
[CF] C. Minimize The Integer - Educational Codeforces Round 75 (Rated for Div. 2)
回文 2
[CF] C. Palindromic Subsequences - Codeforces Round 997 (Div. 2) A. Simple Palindrome - Codeforces Round 972 (Div. 2)
完全二叉树 1
D. Paths in a Complete Binary Tree - Educational Codeforces Round 18
幂平均不等式 1
A. Simple Palindrome - Codeforces Round 972 (Div. 2)
数位dp 1
[CF] D. Magic Numbers - Educational Codeforces Round 8
栈 1
C. Minimal string - Educational Codeforces Round 19
特殊背包 2
[CF] E. Selling Souvenirs - Educational Codeforces Round 21 [CF] C. Game with Multiset - Educational Codeforces Round 160 (Rated for Div. 2)
矩阵 1
[CF] C. The Trail - Codeforces Round 996 (Div. 2)
解方程 1
[CF] C. The Trail - Codeforces Round 996 (Div. 2)
逆序数 1
[CF] D. Inversion Counting - Educational Codeforces Round 35 (Rated for Div. 2)
错位排列 1
[CF] D. Almost Identity Permutations - Educational Codeforces Round 32
预处理 1
[CF] B. You Are Given a Decimal String... - Educational Codeforces Round 70 (Rated for Div. 2)