Subsequence solution codeforces

Subsequence solution codeforces Alice has an integer sequence aa of length nn and all elements are different. She will choose a subsequence of aa of length mm, and defines the value of a subsequence ab1,ab2,…,abmab1,ab2,…,abm as ∑i=1m(m⋅abi)−∑i=1m∑j=1mf(min(bi,bj),max(bi,bj)),∑i=1m(m⋅abi)−∑i=1m∑j=1mf(min(bi,bj),max(bi,bj)), where f(i,j)f(i,j) denotes min(ai,ai+1,…,aj)min(ai,ai+1,…,aj). Subsequence solution codeforces Alice wants you to help her to maximize the Continue reading Subsequence solution codeforces

Mathematics Curriculum solution codeforces

Mathematics Curriculum solution codeforces Let c1,c2,…,cnc1,c2,…,cn be a permutation of integers 1,2,…,n1,2,…,n. Consider all subsegments of this permutation containing an integer xx. Given an integer mm, we call the integer xx good if there are exactly mm different values of maximum on these subsegments. Cirno is studying mathematics, and the Continue reading Mathematics Curriculum solution codeforces

Portal – CQXYM found a rectangle AA of size n×mn×m. There are nn rows and mm columns of blocks. Each block of the rectangle is an obsidian block or empty

Portal – CQXYM found a rectangle AA of size n×mn×m. There are nn rows and mm columns of blocks. Each block of the rectangle is an obsidian block or empty CQXYM found a rectangle AA of size n×mn×m. There are nn rows and mm columns of blocks. Each block of the rectangle is an Continue reading Portal – CQXYM found a rectangle AA of size n×mn×m. There are nn rows and mm columns of blocks. Each block of the rectangle is an obsidian block or empty

Diameter of Graph solution codeforces

Diameter of Graph solution codeforces CQXYM wants to create a connected undirected graph with nn nodes and mm edges, and the diameter of the graph must be less than k−1k−1. Also, CQXYM doesn’t want a graph that contains self-loops or multiple edges (i.e. each edge Continue reading Diameter of Graph solution codeforces

CQXYM Count Permutations solution codeforces

CQXYM Count Permutations solution codeforces CQXYM is counting permutations length of 2n. A permutation is an array consisting of n distinct integers from 1 to n in arbitrary order. For example, [2,3,1,5,4] is a permutation, but [1,2,2] is not a permutation (2 appears twice in the array) and [1,3,4] is also not a permutation Continue reading CQXYM Count Permutations solution codeforces

Counting Tuples solution codechef

Counting Tuples solution codechef You are given an integer NN. You have to count the number of distinct tuples (A,B,C,D)(A,B,C,D) with 1≤A,B,C,D≤N1≤A,B,C,D≤N such that A⋅B=C⋅DA⋅B=C⋅D. Counting Tuples solution codechef Two tuples, say (A,B,C,D)(A,B,C,D) and (E,F,G,H)(E,F,G,H) are considered to be different if at least one of the following conditions hold true: A≠EA≠E B≠FB≠F Continue reading Counting Tuples solution codechef

Task Times solution codechef

Task Times solution codechef Chef’s exam is near. There is a total of MM subjects in his syllabus. Each subject consists of several topics. However, the questions will be set only from NN topics. These topics are numbered 11 through NN. The ithith topic belongs to CthiCith subject and takes TiTi hours to Continue reading Task Times solution codechef