Pagini recente » Cod sursa (job #291769) | Cod sursa (job #1694776) | Cod sursa (job #1231325) | Cod sursa (job #1791525) | Cod sursa (job #1111918)
#include <iostream>
#include <fstream>
#include <cstdio>
#include <cstring>
using namespace std;
int n, gcd[1005][1005];
inline int fgcd(int a, int b) {
if (!b) return a;
return fgcd(b, a % b);
}
int dp[2][1005][205], unu[205];
void add(int A[], int B[]) {
int i, t = 0;
for (i = 1; i <= A[0] || i <= B[0] || t; ++i, t /= 10)
A[i] = (t += A[i] + B[i]) % 10;
A[0] = i - 1;
}
int main() {
#ifdef INFOARENA
ifstream cin("indep.in");
ofstream cout("indep.out");
#endif
for (int i = 1; i <= 1000; ++i)
for (int j = 1; j <= 1000; ++j)
gcd[i][j] = fgcd(i, j);
unu[0] = unu[1] = 1;
cin >> n;
for (int ni = 1; ni <= n; ++ni) {
int a;
cin >> a;
int crl = ni % 2;
for (int i = 1; i <= 1000; ++i) {
add(dp[crl][gcd[i][a]], dp[!crl][i]);
add(dp[crl][i], dp[!crl][i]);
}
add(dp[crl][a], unu);
memset(dp[!crl], 0, sizeof(dp[!crl]));
}
int crl = n % 2;
for (int i = dp[crl][1][0]; i >= 1; --i)
cout << dp[crl][1][i];
#ifdef INFOARENA
fin.close();
fout.close();
#endif
}