Nu aveti permisiuni pentru a descarca fisierul grader_test10.ok
Cod sursa(job #558004)
| Utilizator | Data | 17 martie 2011 01:17:06 | |
|---|---|---|---|
| Problema | Sum | Scor | 40 |
| Compilator | cpp | Status | done |
| Runda | Arhiva de probleme | Marime | 0.41 kb |
#include<fstream>
using namespace std;
ifstream fin("sum.in");ofstream fout("sum.out");
long long int i,j,s,N,x,l,v[100005],k,m;
int main(){
fin>>N;
for(i=1;i<=N;++i){
fin>>x;
for(j=1;j<=2*x-1;++j)
v[j]=j;
s=0;
for(k=2;k<=x;++k){
if(x%k==0){
for(l=k;l<=2*x-1;l+=k){
v[l]=0;
}
}
}
for(m=1;m<=2*x-1;++m){
s+=v[m];v[m]=0;
}
fout<<s<<endl;
}
return 0;
}
