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Cod sursa(job #95906)
#include<fstream.h>
#include<iomanip.h>
#define dim 1000
int n,mn,mx;
float v[dim],w[dim],r,rx;
ifstream f("secv3.in");
void cit()
{int i;
f>>n>>mn>>mx;
for(i=1;i<=n;i++)
{f>>v[i];
v[i]+=v[i-1];
}
for(i=1;i<=n;i++)
{f>>w[i];
w[i]+=w[i-1];
}
}
void caut()
{int i,j=0,k;
while(j<n)
for(i=mn;i<=mx;i++)
{k=j+i;
if(k<=n)
{r=(v[k]-v[j])/(w[k]-w[j]);
if(r>rx)
rx=r;
}
else break;
j++;
}
}
int main()
{
cit();
f.close();
caut();
ofstream g("secv3.out");
g<<(setprecision(2))<<rx<<'\n';
g.close();
return 0;
}