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最佳答案:x^2=y^2-2y+61=(y-1)^2+60x^2-(y-1)^2=60(x-y+1)(x+y-1)=60=6*10=2*30=1*60=3*20=10*6
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最佳答案:X=1 Y=1X=1 Y=-1X=-1 Y=1X=-1 Y=-1X=3 Y=0X=-3 Y=0