Submission #780995

#	Time	Username	Problem	Language	Result	Execution time	Memory
780995		ymm	Self Study (JOI22_ho_t2)	C++17	0 / 100	434 ms	10808 KiB

Main

#include <bits/stdc++.h>
#define Loop(x,l,r) for (ll x = (l); x < (ll)(r); ++x)
#define LoopR(x,l,r) for (ll x = (r)-1; x >= (ll)(l); --x)
typedef long long ll;
typedef std::pair<int, int> pii;
typedef std::pair<ll , ll > pll;
using namespace std;

int main()
{
	cin.tie(0) -> sync_with_stdio(false);
	ll n, m;
	cin >> n >> m;
	vector<ll> a(n), b(n);
	for (auto &x : a)
		cin >> x;
	Loop (i,0,n) {
		cin >> b[i];
		a[i] = max(a[i], b[i]);
	}
	ll l = 0, r = 1e18;
	while (l < r) {
		ll target = (l+r+1)/2;
		ll cnt = 0;
		Loop (i,0,n) {
			ll x = (target+a[i]-1)/a[i];
			x = min(x, m);
			if (x*a[i] < target)
				x += (target - x*a[i] + b[i]-1)/b[i];
			cnt += x;
		}
		if (cnt <= n*m)
			l = target;
		else
			r = target-1;
	}
	cout << l << '\n';
}

• Subtask 1: 0 / 10
• Subtask 2: 0 / 25
• Subtask 3: 0 / 27
• Subtask 4: 0 / 29
• Subtask 5: 0 / 9