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https://github.com/Kiritow/OJ-Problems-Source.git
synced 2024-03-22 13:11:29 +08:00
19 lines
333 B
C++
19 lines
333 B
C++
#include<stdio.h>
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#include<math.h>
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int main()
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{
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int n;
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double u,v,s;
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while(scanf("%d",&n)!=EOF)
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{
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while(n--)
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{
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scanf("%lf%lf",&s,&u);
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v=tan(atan(1/s)-atan(1/u));
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v=1.0/v;
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printf("%.0lf\n", v*u-s*u-s*v);
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}
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}
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return 0;
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}
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