Problems from Tough Dash, September 2023

These problems are from a contest hosted on September 15, 2023 at 3:00 PM UTC. See details...

Standings
A. Strange Patterns
Given R, C and D, you will produce a pattern consisting of asterisks (*) and dots (.). The pattern i...
Moderate 41/51/71
B. Strange Patterns Reversed
You will be given an R×C grid of asterisks (*) and dots (.). The grid is the top-left view of an inf...
Moderate 30/48/97
C. Prime Plus Prime
You will be given an integer N. N is a prime number. You have to determine if adding any other prime...
Very Easy 149/226/653
D. Imagine a Graph 1
Imagine a graph of infinite nodes labelled with positive integers from 1 to ∞. Take every pair of no...
Very Easy 41/60/194
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