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BateralChina83:
忽然想起年初抽风搞得“极霸”方程[笑哭]\min\left(\min\left(\left(x+5\right)^{2}+y^{2}-50,\left(x-5\right)^{2}+y^{2}-50\right),\max\left(-6-x,-6+x,-y,y-a\right),x^{2}+\left(-\left(y-a\right)-\left|\frac{1}{4}x\right|\right)^{2}-50\right)\le0