Cod sursa(job #2705097)
Utilizator | Gaspar Robert Andrei gasparrobert95 | Data | 11 februarie 2021 21:33:46 |
---|---|---|---|
Problema | Indep | Scor | 5 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva de probleme | Marime | 0.45 kb |
#include <bits/stdc++.h>
#define ll long long
using namespace std;
ifstream fin("indep.in");
ofstream fout("indep.out");
ll n, el, pd[505][1005];
int main() {
fin >> n;
for (int i = 1; i <= n; ++i) {
fin >> el;
for (ll j = 1; j <= min(el, (ll)1000); ++j) {
ll c = __gcd(el, j);
pd[i][c] += pd[i - 1][j] + pd[i - 1][c];
}
++pd[i][el];
}
fout << pd[n][1];
return 0;
}