Cod sursa(job #3225538)
Utilizator | Serban Carole SerbanCarole | Data | 17 aprilie 2024 20:10:50 |
---|---|---|---|
Problema | Mins | Scor | 100 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva de probleme | Marime | 0.56 kb |
#include <fstream>
#include <vector>
using namespace std;
ifstream cin("mins.in");
ofstream cout("mins.out");
using ll = long long;
using pii = pair<int,int>;
const int nmax = 1e6 + 1;
ll n , m , siv[nmax];
signed main()
{
ios::sync_with_stdio(false);
cin.tie(nullptr);
cout.tie(nullptr);
cin >> n >> m;
n--; m--;
int mn = min(n,m);
for(int i = mn ; i >= 1 ; --i)
{
siv[i] = (n/i)*(m/i);
for(int j = i+i ; j <= mn ; j += i)
{
siv[i] -= siv[j];
}
}
cout << siv[1];
}