Cod sursa(job #611830)

Utilizator BlaugranasEnal Gemaledin Blaugranas Data 3 septembrie 2011 18:14:50
Problema Buline Scor 80
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.72 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;
int main()
{freopen("buline.in","r",stdin);
freopen("buline.out","w",stdout);
scanf("%ld",&n);
t[0]=-INF;
for(i=1;i<=n;i++)
      {scanf("%ld%ld",&a[i],&b);
      if(!b)
             a[i]=-a[i];
      s[i]=a[i]+s[i-1];
      if(s[i]>t[i-1])
             t[i]=s[i];
      else
             t[i]=t[i-1];
      if(t[i]<0)
             t[i]=0;}
for(i=1,l=0;i<=n;i++)
if(t[i-1]+s[n]-s[i-1]>w)
      w=t[i-1]+s[n]-s[i-1],l=i;
for(i=l;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;}