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#include <fstream>
using namespace std;
ifstream f("secv2.in");
ofstream g("secv2.out");
int i,j,i1,max1=-2100000,x,pozi,pozj,suma=-1,n,k;
int s[50001],minim[50001],poz[50001];
int main()
{
f>>n>>k;
for (i=1;i<=n;i++)
{
f>>x;
s[i]=s[i-1]+x;
}
for (i=1;i<=n;i++)
{
if (s[i]<minim[i-1])
{
minim[i]=s[i];
poz[i]=i;
}
else
{
minim[i]=minim[i-1];
poz[i]=poz[i-1];
}
}
for (i=k;i<=n;i++)
if (s[i]-minim[i-k]>max1)
{
max1=s[i]-minim[i-k];
pozi=poz[i-k]+1;
pozj=i;
}
g<<pozi<<" "<<pozj<<" "<<max1;
return 0;
}