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Cod sursa(job #72472)
#include <cstdio>
using namespace std;
#define FIN "buline.in"
#define FOUT "buline.out"
int N,i,a[400005];
int sc,smax;
int in,out,ina;
int leng;
int s1,s2;
int main()
{
freopen(FIN,"r",stdin);
freopen(FOUT,"w",stdout);
scanf("%d",&N);
N<<=1;
for (i=1; i<=N/2; i++)
{
scanf("%d %d",&s1,&s2);
if (s2==1) { a[i]=s1; a[i+N/2]=s1; }
else { a[i]=-s1; a[i+N/2]=-s1; }
}
sc=smax=a[1];
in = 1; out = 1;
for (i=2; i<=N; i++)
{
if (sc<0 || i-ina>N/2)
{ sc=a[i]; ina=i; }
else sc+=a[i];
if (sc>smax)
{ smax=sc; in=ina; out=i; }
}
printf("%d %d %d",smax,in,out-in+1);
return 0;
}