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#include<stdio.h>
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int jiefangcheng(double a,double b,double c)
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{
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if(b*b-4*a*c<0)
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{
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return 0;
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}
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else if(b*b-4*a*c==0)
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{
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return 1;
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}
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else if(b*b-4*a*c>0)
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{
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return 2;
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}
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}
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int main()
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{
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double a,b,c;
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scanf("%lf%lf%lf",&a,&b,&c);
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printf("%d\n" ,jiefangcheng(a,b,c));
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return 0;
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