제출 #937837

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
937837		vjudge1	Self Study (JOI22_ho_t2)	C++17	100 / 100	215 ms	2900 KiB

Main

#include <bits/stdc++.h>

using namespace std;

// #define int long long

int main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);

	long long N, M; cin >> N >> M;
	vector<int> A(N);
	for(auto &i : A) cin >> i;
	vector<int> B(N);
	for(auto &i : B) cin >> i;
	long long lo = 0;
	long long hi = 1e18;
	long long bst = 0;
	while(lo <= hi){
		long long mid = (lo + hi) / 2;
		long long need = 0;
		for(int i = 0; i < N && need <= N * M; i++){
			long long needClass = (mid + max(A[i], B[i]) - 1) / max(A[i], B[i]);
			if(needClass <= M){
				need += needClass;
				continue;
			}
			need += M;
			long long left = mid - max(A[i], B[i]) * M;
			need += (left + B[i] - 1) / B[i];
		}
		if(need <= N*M){
			bst = mid;
			lo = mid + 1;
		}else hi = mid - 1;
	}
	// int bst = 2e9;
	// for(int i = 0; i < N; i++) bst = min(bst, max(A[i], B[i]));
	cout << bst << "\n";
}

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