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Cod sursa(job #849832)
#include<fstream>
using namespace std;
long n,k,sum,max1,st=1,sf,in,i,a[50001],nr;
int main()
{
ifstream f("secv2.in");
ofstream g("secv2.out");
f>>n>>k;
for(i=1;i<=n;i++)
f>>a[i];
for(i=1;i<=n;i++)
{
if(sum<0)
{
sum=a[i];
st=i;
nr++;
}
else
{
sum=sum+a[i];
nr++;
}
if(max1<=sum&&nr>=k)
{
sf=i;
in=st;
max1=sum;
}
}
g<<in<<" "<<sf<<" "<<max1;
}