Figure 8: Difficulty by marginal LoC. Percentage breakdown of difficulty levels within each marginal LoC bin. As marginal LoC increases, the proportion of easy problems decreases monotonically: 93% → 88% → 85% → 81% → 79% → 50% → 13% → 0%. The difficulty cliff is sharp at 17+ marginal LoC, where hard and extreme problems become dominant.
# — or simply run the build script —
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I can’t write a 2025 SBC roundup without addressing the memory situation. LPDDR4 and LPDDR5 prices have been climbing since the second half of the year, driven by manufacturers shifting production towards higher-margin memory types (the AI boom has a lot to answer for here). We’ve already seen Raspberry Pi raise prices across their lineup, and they’re unlikely to be the last.
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