#3548

Equal Sum Grid Partition II

international master · 2180 · lc hard +32 · 21.7% accepted · 40 likes · top 2%

Description

Given a positive-integer matrix grid, determine if a single horizontal or vertical cut exists such that the two resulting non-empty sections have equal sums, or can be balanced by excluding at most one cell (from either section), provided the remaining section stays connected.

Return true if possible; otherwise false.

Note: Connectivity means every cell in the section is reachable from any other via up/down/left/right moves within the section.

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