Cod sursa(job #611838)

Utilizator BlaugranasEnal Gemaledin Blaugranas Data 3 septembrie 2011 18:44:32
Problema Buline Scor 80
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.8 kb
#include<stdio.h>
#define INF 2000000000
#define N 200001
long n,i,a[N],b,s[N],t[N],w=-INF,x,z,l,j;
int main()
{freopen("buline.in","r",stdin);
freopen("buline.out","w",stdout);
scanf("%ld",&n);
for(i=1;i<=n;i++)
      {scanf("%ld%ld",&a[i],&b);
      if(!b)
             a[i]=-a[i];
      if(a[i]>w)
             w=a[i],l=i,x=1;
      s[i]=a[i]+s[i-1];
      if(s[i]>t[i-1])
             t[i]=s[i];
      else
             t[i]=t[i-1];}
if(w>=0)
      {for(j=1;j<=n;j++)
      if(t[j-1]+s[n]-s[j-1]>w)
              w=t[j-1]+s[n]-s[j-1],l=j;
      for(i=l,x=0;i<n+l;i++)
              {x++;
              if(i>n)
                     z+=a[i-n];
              else
                     z+=a[i];
              if(z==w)
                     break;}}
printf("%ld %ld %ld",w,l,x);
return 0;}