Cod sursa(job #1452239)

Utilizator GeiGeiGeorge Cioroiu GeiGei Data 20 iunie 2015 13:56:09
Problema Sum Scor 40
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.1 kb
#include <cstdio>
#include <iostream>
#include <vector>

using namespace std;

int main() {
    freopen("sum.in", "r", stdin);
    freopen("sum.out", "w", stdout);

    ios_base::sync_with_stdio(false);
    cin.tie(0);

    int t;
    cin >> t;
    int p[65] = {2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241, 251, 257, 263, 269, 271, 277, 281, 283, 293, 307, 311, 313};
    for (int i = 0; i < t; i++) {
        int x;
        cin >> x;
        vector<bool> al(2 * x + 5);
        for (int i = 0; i < 65; i++) {
            if (x % p[i] == 0) {
                for (int j = 0; j <= 2 * x; j += p[i]) {
                    al[j] = true;
                }
            }
        }
        al[x] = true;
        long long ans = 0;
        for (int i = 0; i < 2 * x; i++) {
            if (!al[i]) {
                ans += i;
            }
        }
        cout << ans << "\n";
    }
    return 0;
}