Pagini recente » Cod sursa (job #588779) | Cod sursa (job #525463) | Cod sursa (job #2684488) | Cod sursa (job #2771970) | Cod sursa (job #433383)
Cod sursa(job #433383)
#include<stdio.h>
int n,a[200001],max=-999999999,st,fn,s[200001],t[200001];
int MAX(int a,int b)
{
if(a>=b)return a;
return b;
}
void read()
{
FILE*f=fopen("buline.in","r");
fscanf(f,"%d",&n);
int i,var,aux,sum=0,pos=1;
//s[0]=-999999999;
for(i=1;i<=n;++i)
{
fscanf(f,"%d%d",&var,&aux);
a[i]=var;
if(!aux)a[i]=-var;
if(sum+a[i]>a[i])
sum+=a[i];
else {sum=a[i];pos=i;}
if(sum>max)
{
max=sum;
st=pos;
fn=i;
}
s[i]=s[i-1]+a[i];
if(s[t[i-1]]>=s[i]&&i!=1)
t[i]=t[i-1];
else t[i]=i;
}
fclose(f);
}
void func()
{
int i;
for(i=1;i<=n;++i)
{
if(s[t[i-1]]+s[n]-s[i-1]>max)
{
max=s[t[i-1]]+s[n]-s[i-1];
st=i;
if(t[i-1]<i)fn=n+t[i-1];
else fn=t[i-1];
}
}
}
int main()
{
read();
func();
FILE*g=fopen("buline.out","w");
fprintf(g,"%d %d %d\n",max,st,fn-st+1);
fclose(g);
return 0;
}