YouKnowWho

YouKn0wWho has an integer n. He wants to find an integer sequence a of size exactly 2n such that 0≤a...

Moderate 40/54/108

Ant-Man before escaping from the quantum realm thought about roaming around the realm. And much to h...

Geometry Hard 13/14/22

You are given two integers l and r. You need to find the value of As the value of this equation ma...

Moderate 5/7/15

You are given an integer sequence a1​,a2​,…,an​. For any non-negative integer k, let P(k)=l=1∏n​r=l,...

Moderate 5/6/17

Cherry isn't feeling well right now as she found a problem that she couldn't solve. So she started t...

Easy 247/280/452

Cherry isn't feeling well right now as she found a problem that she couldn't solve. So she started t...

Moderate 91/109/231

Cherry isn't feeling well right now as she found a problem that she couldn't solve. So she started t...

Hard 13/14/23

Perfect lines are the lines y=mx+c such that m and c are positive integers. Perfect points are the p...

NumberTheory Moderate 8/30/71

Let P be a permutation of length n where each value from 1 to n occurs exactly once. A subsequence o...

Greedy, Math Moderate 65/72/184

You are given a directed graph consisting of n vertices and m edges (each edge is directed, so it ca...

Graph, ShortestPath Moderate 28/40/179

Let's consider a string S which is obtained by concatenating the non-negative integers from 0 to 102...

Adhoc Easy 208/220/333

You are given an array A of n integers and an integer k. You need to find if there is any non-empty ...

Greedy Moderate 114/134/261

SUST has n departments numbered from 1 to n where every pair of distinct departments is connected by...

Graph Moderate 7/10/17

Cherry isn't feeling well right now as she found a problem that she couldn't solve. So she started t...

Moderate 164/248/619

YouKn0wWho has an integer sequence a1​,a2​,…,an​. He will perform the following operation until the ...

Moderate 9/12/16

Neo has a hidden array A of n integers where 0 ≤ Ai ≤ 109 is satisfied for each i from 1 to n . You ...

BinarySearch Moderate 25/31/109

Cherry isn't feeling well right now as she found a problem that she couldn't solve. So she started t...

Moderate 4/8/16