#include using namespace std; #define int long long #define rep(i,n) for(int (i)=0;(i)<(n);(i)++) #define rrep(i,n) for(int (i)=((n)-1);(i)>=0;(i)--) #define itn int #define all(x) (x).begin(),(x).end() #define F first #define S second const long long INF = 1LL << 60; const int MOD = 1000000007; template inline bool chmin(T& a, T b) { if (a > b) { a = b; return true; } return false; } template inline bool chmax(T& a, T b) { if (a < b) { a = b; return true; } return false; } int gcd(int a,int b) { if (a%b==0) return(b); else return(gcd(b,a%b)); } signed main(void){ itn n; cin>>n; int ans = 0; vector a(n); rep(i,n) cin>>a[i]; vector > dp(n); //i番目が最後,gcdがjになるそれが k個 for(int i=0;i