/* Author:zeke pass System Test! GET AC!! */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include using ll = long long; using ld = long double; using namespace std; #define rep(i, n) for (int i = 0; i < (int)(n); i++) #define all(x) (x).begin(), (x).end() #define rep3(var, min, max) for (ll(var) = (min); (var) < (max); ++(var)) #define repi3(var, min, max) for (ll(var) = (max)-1; (var) + 1 > (min); --(var)) #define Mp(a, b) make_pair((a), (b)) #define F first #define S second #define Icin(s) \ ll(s); \ cin >> (s); #define Scin(s) \ ll(s); \ cin >> (s); template bool chmax(T &a, const T &b) { if (a < b) { a = b; return 1; } return 0; } template bool chmin(T &a, const T &b) { if (b < a) { a = b; return 1; } return 0; } typedef pair P; typedef vector V; typedef vector VV; typedef vector

VP; ll mod = 1e9 + 7; ll MOD = 1e9 + 7; ll INF = 1e18; int main() { cin.tie(0); ios::sync_with_stdio(false); ll n; cin>>n; ll res = 1e18; rep3(i,1,sqrt(n)+1){ if(n%i==0){ ll m = n / i; rep3(j,1,sqrt(m)+1){ if(m%j==0){ chmin(res, i + j + m / j - 3); } } } } cout << res <