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Cod sursa(job #678453)
# include<fstream>
#include<math.h>
using namespace std;
long n, i, a[600000],k;
long best_sum[6000000],inceput, sf, c=0;
ifstream f("secv2.in");
ofstream g("secv2.out");
void citire()
{
f>>n>>k;
for(i=1;i<=n;i++)
f>>a[i];
f.close();
}
void ssm ()
{
for(i=1;i<=n;i++)
{
best_sum[i]=a[i];
if(best_sum[i-1]+a[i]>best_sum[i] && i>=k)
{best_sum[i]=best_sum[i-1]+a[i];
}
}
}
int main()
{
int max=best_sum[1];
citire();
ssm();
for(i=1;i<=n;i++)
if(best_sum[i]>max)
{max=best_sum[i];
sf=i;
}
for(i=sf;i>=1;i--)
if (a[i]==best_sum[i]) {inceput=i;break;}
g<<max<<" "<<inceput<<" "<<sf;
return 0;
}