#include "bits/stdc++.h" using namespace std; #define int long long #define REP(i, n) for (int i = 0; i < (int)n; ++i) #define RREP(i, n) for (int i = (int)n - 1; i >= 0; --i) #define FOR(i, s, n) for (int i = s; i < (int)n; ++i) #define RFOR(i, s, n) for (int i = (int)n - 1; i >= s; --i) #define ALL(a) a.begin(), a.end() #define IN(a, x, b) (a <= x && x < b) templateinline void out(T t){cout << t << "\n";} templateinline void out(T t,Ts... ts){cout << t << " ";out(ts...);} templateinline bool CHMIN(T&a,T b){if(a > b){a = b;return true;}return false;} templateinline bool CHMAX(T&a,T b){if(a < b){a = b;return true;}return false;} constexpr int INF = 1e18; signed main(){ int N, D; cin >> N >> D; vectorx(N), v(N); REP(i, N) { cin >> x[i]; } REP(i, N) { cin >> v[i]; } auto f =[&](int x){ int ret = 0; REP(i, N) { ret += v[i] * x; } return ret >= D; }; int l = -1, r = 1e9 + 1; while(r - l > 1){ int c = (l + r) / 2; if(f(c)) r = c; else l = c; } cout << r << endl; }