Flags are distributed randomly on a large board. Starting from the corner position your goal is to capture as many flags as possible in at most N moves.
Description:
The board is described by a matrix B with 1's at the flag positions, and 0's otherwise.
E.g.
B = [0 0 1 1;
0 0 1 1;
0 0 1 0];
N = 6;
You are starting at the top-left corner (row=1, col=1) and are allowed N steps (steps are up/down/left/right movements, no diagonal movements allowed).
Return a trajectory attempting to maximize the number of flags captured. The output of your function should be a Nx2 matrix of the form [row, col] (not including the initial [1,1] position) visiting as many flags as possible.
E.g.
path = [1 2;
1 3;
1 4;
2 4;
2 3;
3 3];
This solution captures all 5 flags on the board.
Scoring:
Your function will receive a score equal to the number of non-visited flags across all 50 of the testsuite problems. You need to leave at most 10,000 flags univisited (among 50,000 total flags) to pass this problem.
Note:
The boards and number of movements allowed will be large. Optimizing over all possible trajectories is very likely to time out.
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Last Solution submitted on May 24, 2026

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Chris Cleveland George Berken cokakola Igor

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