Cod sursa(job #425343)

Utilizator Cristi09Cristi Cristi09 Data 25 martie 2010 17:51:50
Problema Buline Scor 10
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.71 kb
#include<stdio.h>
int n,a[200000],max,st,fn,s[200000],t[200000];
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(s[t[i-1]]>s[i])
		t[i]=t[i-1];
		else t[i]=i;
	}
	fclose(f);
}
void func()
{
	int var=0,i,min=0,minP=-1;
	st=-1;
	
	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;
		}
		fn=n+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;
}