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Cod sursa(job #498571)
#include<stdio.h>
const int INF=100001;
int i,n,v[200001],st,smin,smax,as2,as,af,af2,c,sc;
int main()
{
freopen("buline.in","r",stdin);
freopen("buline.out","w",stdout);
scanf("%d",&n);
for(i=1;i<=n;++i)
{
scanf("%d%d",&v[i],&c);
if(c==0)
v[i]=-v[i];
st+=v[i];
}
sc=0;
smax=-INF;
for(i=1;i<=n;++i)
{
sc+=v[i];
if(sc>smax)
{
smax=sc;
af=i;
}
if(sc<0)
{
as=i;
sc=0;
}
}
smin=INF;
sc=0;
for(i=1;i<=n;++i)
{
sc+=v[i];
if(sc<smin)
{
smin=sc;
af2=i;
}
if(sc>0)
{
as2=i;
sc=0;
}
}
if(smax>st-smin)
printf("%d %d %d",smax,as+1,af-1);
else
printf("%d %d %d",st-smin,af2+1,as2-1);
return 0;
}