Problems from Tough Duo, April 2022

These problems are from a contest organized by Furqan Software on April 14, 2022 at 8:00 AM UTCSee details...

Standings
A. Birthday Present?!
As everyone gifts graphs or strings to people on their birthdays, Oyshee’s friends decided to do som...
B. Many Paths, Many Costs
Alice and Bob are visiting Byteland. They are observing the map of this country. Surprisingly, the m...
C. XOR Is Fun
Efa hates numbers. But she loves the XOR operation. This time, you have to solve another problem for...
D. Maximum Distance
You know it’s hard seeing your favorite person being interested in another one instead of you. At th...
E. Switchblade of Thanos
We all know that Thanos “The Mad Titan“ had two adopted daughters, Gamora and Nebula. But did you kn...
F. Shuvo Noboborsho!
"Shuvo Noboborsho" is the traditional greeting for Bengalis in the Bengali new year which means "Hap...
G. Pudding and Coins
Pudding is playing a game that has n levels. There are a total of n(n+1)/2 coins spread out among th...
H. Set the Meeting
Three colleagues Motu, Biscuit and Ramjan are in Sundarbans now. They are on a mission to protect th...
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