B. Array Sharpening time limit per test1 second memory limit per test256 megabytes inputstandard input outputstandard output You’re given an array a1,…,an ...
You want to perform the combo on your opponent in one popular fighting game. The combo is the string s consisting of n lowercase Latin letters. To perform the c...
C. Restoring Permutation time limit per test1 second memory limit per test256 megabytes inputstandard input outputstandard output You are given a sequence ...
ACM思维题训练集合 You are given two integers n and d. You need to construct a rooted binary tree consisting of n vertices with a root at the vertex 1 and the sum of d...