Problems from Criterion 2021 Round 11

These problems are from a contest organized by Furqan Software on March 19, 2021 at 10:00 AM UTC See details...

Standings
A. Find LCM
The Least Common Multiple of two integers a and b is the smallest integer x, such that x is divided ...
B. Walk on the Grid
There is a grid of size $R\times C$ where $R = $ Number of rows and $C = $ Number of columns. You sh...
C. Path Intersection Extended
Do you remember the problem from ICPC Dhaka Regional 2018 named $Path$ $Intersection$ by Md. Imran B...
D. XOR Tree
You are given a tree with N vertices. A tree is a connected undirected graph without cycles. The tre...
E. Costly Array
Oyler received a peculiar homework from his school. The teacher gave him a positive number $n$ and t...
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