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Cod sursa(job #425374)
#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;
for(i=1;i<=n;++i)
{
fscanf(f,"%d%d",&var,&aux);
a[i]=var;
if(!aux)a[i]=-var;
s[i]=s[i-1]+a[i];
if(t[i-1]>=s[i])
t[i]=t[i-1];
else t[i]=s[i];
}
fclose(f);
}
void func()
{
int i;
st=-1;
for(i=1;i<=n;++i)
{
if(t[i-1]+s[n]-s[i-1]>max)
{
max=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;
}