21 lines
351 B
C++
21 lines
351 B
C++
#include <stdio.h>
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int main()
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{
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int n,x1,x2,x3,x4,i,j,k,m,s,v;
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double time,min;
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min=2000;
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scanf("%d%d%d%d%d",&n,&x1,&x2,&x3,&x4);
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for(i=0;i<=10;i++)
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for(j=0;j<=10;j++)
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for(k=0;k<=10;k++)
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if((i+j+k)<=n)
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{
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m=n-i-j-k;
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time=((20.0-i*2)*x1+((100.0-j*7)*x2*2+(100.0-k*9)*x3)/((10.0+m)*x4));
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if(time<min) min=time;
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time=0;
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}
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printf("%.3lf",min);
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return 0;
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}
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