Cod sursa(job #1051703)

Utilizator vlad008Stan Vladut Angel vlad008 Data 10 decembrie 2013 14:11:28
Problema Datorii Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.1 kb
#include<cstdio>
using namespace std;
int n,x,y,t,op,k,ss,dd,tip=1;
int arb[4*15020];
void push(int,int,int);
void maxi(int,int,int);
int main()
{
    freopen("datorii.in","r",stdin);
    freopen("datorii.out","w",stdout);
    scanf("%d%d",&n,&t);
    for(dd=1;dd<=n;dd++)
    {
        scanf("%d",&ss);
        push(1,1,n);
    }
    tip=0 ;
    for(int i=1;i<=t;i++)
    {
        scanf("%d%d%d",&op,&dd,&ss);
        if(!op)
        {
            push(1,1,n);
        }
        else
        {
            k = 0;
            maxi(1,1,n);
            printf("%d\n",k);
        }
    }
    return 0;
}
void push(int nod, int s, int d)
{
    if( s==d ) 
    {
        if(tip) arb[nod]+=ss;
          else arb[nod]-=ss;
        return ;
    }
    int m=(s+d)/2;
    if(dd <= m) push(2*nod, s ,m);
      else push(2*nod+1,m+1,d);
    arb[nod]= arb[2*nod+1]+ arb[2*nod];
}
void maxi(int nod, int s, int d)
{
    if( dd <= s && d<=ss)
    {
        k+=arb[nod];
        return ;
    }
    int m=(s+d)/2;
    if(dd<=m) maxi(2*nod, s ,m);
    if(m<ss) maxi(2*nod+1, m+1, d);
}