Problems by YouKnowWho

And... Yet Another AND Problem

YouKn0wWho has an integer nnn. He wants to find an integer sequence aaa of size exactly 2n2n2n such ...

Very Easy 32/44/94

Ant-Man And The Polygon

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

Enormous Product

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

F

You are given an integer sequence a1,a2,…,ana_1, a_2,\ldots, a_na1​,a2​,…,an​. For any non-negative ...

Moderate 5/6/17

Giveaway

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

Isn't It Strange?

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

On the Sea

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

Perfect Points

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

Permutations and Divisors

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

Playing On A Directed Graph

You are given a directed graph consisting of nnn vertices and mmm edges (each edge is directed, so i...

String Is Not That Easy

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

Subset AND

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

The Selection

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

Graph Moderate 7/10/17

Where Do Lovers Go?

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

Moderate 163/247/618

XOR-Gun

YouKn0wWho has an integer sequence a1,a2,…,ana_1, a_2, \ldots, a_na1​,a2​,…,an​. He will perform the...

Moderate 9/12/16

XOR Partition

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

You

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
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