제출 #1053803

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1053803		Alebn	Self Study (JOI22_ho_t2)	C++14	0 / 100	77 ms	7260 KiB

Main

#include <bits/stdc++.h>
#define int long long

using namespace std;

void solve() {
    int n, m;
    cin >> n >> m;
    vector<int> a(n), b(n), arr(n);
    for(int i = 0; i < n; i++) cin >> a[i];
    for(int i = 0; i < n; i++) {
        cin >> b[i];
        arr[i] = m * max(a[i], b[i]);
    }
    int l = 0, r = 1e19, mid, ans = 0;
    while(l <= r) {
        mid = (l + r) / 2;
        int over = 0, under = 0;
        for(int i = 0; i < n; i++) {
            if(arr[i] >= mid) over += (arr[i] - mid) / max(a[i], b[i]);
            else under += (mid - arr[i]) / b[i] + ((mid - arr[i]) % b[i] ? 1 : 0);
        }
        if(over >= under) {
            l = mid + 1;
            ans = mid;
        } else r = mid - 1;
    }
    cout << ans << "\n";
}

signed main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    solve();
}

컴파일 시 표준 에러 (stderr) 메시지

Main.cpp: In function 'void solve()':
Main.cpp:15:20: warning: overflow in conversion from 'double' to 'long long int' changes value from '1.0e+19' to '9223372036854775807' [-Woverflow]
   15 |     int l = 0, r = 1e19, mid, ans = 0;
      |                    ^~~~

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