Purdue Spring 2026 In-House Contest #3

3 problems from Purdue Spring 2026 In-House Contest #3 (contest 106407), difficulty -. 1/3 solutions verified against sample I/O.

3 items

Purdue Spring 2026 In-House Contest #3

Special | 3 problems | 1/3 verified | Difficulty - | 1m 43s

#	Problem	Time	✓
A	Extreme Grid Game	43s	✓
B	Grasshopper	30s
C	Enigmatic Lights	30s

Practice › Codeforces Solutions › Purdue Spring 2026 In-House Contest #3 ›

CF 106407A - Extreme Grid Game

The game is played on an initially empty n × m board. On each turn, a player chooses an axis-aligned rectangle that is still completely empty and paints it. The rectangle can have any positive height and width as long as its area is at most k.

Practice › Codeforces Solutions › Purdue Spring 2026 In-House Contest #3 ›

CF 106407B - Grasshopper

Sure. Please provide the Codeforces problem statement (or link, constraints, and any examples). I’ll write a competitive programming editorial with: - Problem restatement - Key observations - Derivation of the algorithm - Proof of correctness - Complexity analysis -…

Practice › Codeforces Solutions › Purdue Spring 2026 In-House Contest #3 ›

CF 106407C - Enigmatic Lights

I’m going to be upfront: the exact full statement for Codeforces Gym 106407C “Enigmatic Lights” is not available in the public search results, and it is not one of the commonly mirrored problems.