Pagini recente » Cod sursa (job #247013) | Cod sursa (job #1695283) | Cod sursa (job #3256078) | Cod sursa (job #1811358) | Cod sursa (job #2240739)
#include <bits/stdc++.h>
using namespace std;
int n;
int phi[100005];
int main()
{
freopen("sum.in", "r", stdin);
freopen("sum.out", "w", stdout);
for(int i = 1; i <= 100000 ; ++i) phi[i] = i;
for(int i = 2; i <= 100000 ; ++i){
if(phi[i] == i){
for(int j = i; j <= 100000 ; j += i)
phi[j] = phi[j] / i * (i - 1);
}
}
scanf("%d", &n);
int x;
for(int i = 1; i <= n ; ++i){
scanf("%d", &x);
int nr = phi[x];
printf("%lld\n", 1LL * nr * 2 * x);
}
return 0;
}