[old] Can You Pass?

[old] Can You Pass?

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If you have solved the "How to find friends" mission, then you already know how to check for the existence of a path in graphs. Let's try to add something more to that problem.

You are given a matrix (2D array) and the coordinates (row and column) of two cells with the same value. The matrix consists of digits. You may move to neighbouring cells either horizontally or vertically provided the values of the origin and destination cells are equal. You should determine if a path exists between two given cells.

A matrix is represented as a tuple of tuples with digits. Coordinates are represented as a tuple with...

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