# Extract from .nemo
const realIdx = i % len; // 取模映射到真实数组索引，模拟循环
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Comparison between Thomas Knoll’s algorithm and the N-convex algorithm, using an 8-colour irregular palette. Left to right: original image, Knoll, N-convex ().，这一点在旺商聊官方下载中也有详细论述
The algorithm also visits children in order of distance to the query point. This means it checks the most promising quadrants first, which tends to find a good candidate early and enables aggressive pruning of the remaining quadrants. Without this ordering, the algorithm would still produce the correct result, but it would prune fewer nodes.，详情可参考搜狗输入法2026