Cod sursa(job #890942)

Utilizator TibixbAndrei Tiberiu Tibixb Data 25 februarie 2013 12:49:40
Problema Sum Scor 0
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.61 kb
#include<fstream>
using namespace std;
int n, i, t[100001], v[100001], x[100001], s, maxim, q, j;
int main(){
    ifstream f("sum.in");
    ofstream g("sum.out");
    f>>n;
    for(i=1; i<=n; i++){
        f>>x[i];
        if(x[i]>maxim)
            maxim=x[i];
    }
    for(i=2; i<=2*maxim; i++){
        if(v[i]==0){
            t[++q]=i;
            for(j=i+i; j<=2*maxim; j+=i)
                v[j]=1;
        }
    }
    for(i=1; i<=n; i++){
        s=0;
        for(j=1; j<=q && t[j]<=2*x[i]; j++){
            s+=t[j];
        }
        s+=x[i];
        g<<s<<"\n";
    }
    return 0;
}