Cod sursa(job #1707469)

Utilizator ionanghelinaIonut Anghelina ionanghelina Data 25 mai 2016 10:29:21
Problema Datorii Scor 0
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.36 kb
#include<cstdio>
#include<cmath>
using namespace std;
int AIB[15005];
int putere(int baza,int exp)
{
    int p=1;
    for(int i=1;i<=exp;i++)
    {
        p*=baza;
    }
    return p;
}
int zerouri(int x)
{
    int z=0;
    int p=1;
    while (!(x%p))
    {
        p*=2;
        z++;
    }
    return z-1;
}
int suma(int x)
{
    int poz=x;
    int z=0;
    int suma=0;
    while (poz>0)
    {
        suma=suma+AIB[poz];
        z=zerouri(poz);
        poz=poz-putere(2,z);
    }
    return suma;
}
int n,m,c,element,valoare,poz,z,p,q,x;
int main()
{
    freopen("datorii.in","r",stdin);
    freopen("datorii.out","w",stdout);
    scanf("%d%d",&n,&m);
    for(int i=1;i<=n;i++)
    {
        scanf("%d",&x);
        int poz=i;
        while (poz<=n)
        {
            AIB[poz]+=x;
            z=zerouri(poz);
            poz=poz+putere(2,z);
        }
    }
    for(int i=1;i<=m;i++)
    {
        scanf("%d",&c);
        if (!c)
        {
            scanf("%d%d",&element,&valoare);
            poz=element;
            while (poz<=n)
            {
                AIB[poz]-=valoare;
                z=zerouri(poz);
                poz=poz+putere(2,z);
            }
        }
        else
        {
            scanf("%d%d",&p,&q);
            printf("%d\n",suma(q)-suma(p-1));
        }
    }
    return 0;
}