李学武提交的C语言源代码，包括Hilbert曲线，高精度计算，π值计算公式，取石子游戏，趣味等式填数游戏3则，验证四色定理等- Li Xuewu submits the C language source code, including the
Hilbert curve, the high accuracy computation, pi the value formula,
takes the gravel game, the interest equality fills in the number to
play 3 pieces, confirms four colors theorems and so on
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