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Cod sursa(job #423765)
#include<stdio.h>
int n,a[400000],max,st,fn;
void read()
{
FILE*f=fopen("buline.in","r");
fscanf(f,"%d",&n);
int i,var,aux;
for(i=0;i<n;++i)
{
fscanf(f,"%d%d",&var,&aux);
a[i]=a[n+i]=var;
if(!aux)a[i]=a[n+i]=-var;
}
fclose(f);
}
void func()
{
int var=0,i,min=0,minP=-1;
st=-1;
for(i=0;i<n+n;++i)
{
var+=a[i];
if(var<min)
{
min=var;
minP=i;
}
if(var-min>max)
{
if(i-minP>n)return;
max=var-min;
st=minP+1;
fn=i;
}
}
}
int main()
{
read();
func();
FILE*g=fopen("buline.out","w");
fprintf(g,"%d %d %d\n",max,st+1,fn-st+1);
fclose(g);
return 0;
}