#include <bits/stdc++.h> using namespace std; const int N = 1000 * 1000 + 10; int s_pref[N]; int occ[N]; int main () { ios_base::sync_with_stdio(0); cin.tie(0); int n; cin >> n; vector<int> numbers(n, 0); for (int i = 0; i < n; i++) cin >> numbers[i]; sort(numbers.begin(), numbers.end()); for (int i = 0; i < (int)numbers.size(); i++) { int j = i; while (j < (int)numbers.size() && numbers[i] == numbers[j]) j++; occ[j - i]++; i = j - 1; } for (int i = 1; i < N; i++) s_pref[i] = s_pref[i - 1] + occ[i]; vector<int> res(n + 1, 0); for (int i = 1; i <= n; i++) { for (int j = i; j <= n; j += i) { res[i] += j * (s_pref[j + i - 1] - s_pref[j - 1]); } } for (int i = 1; i <= n; i++) cout << res[i] << " "; cout << "\n"; return 0; }
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 | #include <bits/stdc++.h> using namespace std; const int N = 1000 * 1000 + 10; int s_pref[N]; int occ[N]; int main () { ios_base::sync_with_stdio(0); cin.tie(0); int n; cin >> n; vector<int> numbers(n, 0); for (int i = 0; i < n; i++) cin >> numbers[i]; sort(numbers.begin(), numbers.end()); for (int i = 0; i < (int)numbers.size(); i++) { int j = i; while (j < (int)numbers.size() && numbers[i] == numbers[j]) j++; occ[j - i]++; i = j - 1; } for (int i = 1; i < N; i++) s_pref[i] = s_pref[i - 1] + occ[i]; vector<int> res(n + 1, 0); for (int i = 1; i <= n; i++) { for (int j = i; j <= n; j += i) { res[i] += j * (s_pref[j + i - 1] - s_pref[j - 1]); } } for (int i = 1; i <= n; i++) cout << res[i] << " "; cout << "\n"; return 0; } |