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10 lines
185 B
C++
10 lines
185 B
C++
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#include <stdio.h>
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int main()
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{
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double a=0.57735026918963,b=0.81649658092773;
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int r;
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while(scanf("%d",&r),r)
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printf("%.3f %.3f\n",a*r,b*r);
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return 0;
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}
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