#include <bits/stdc++.h>
using namespace std;
using ll = long long;
int main() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
int n, m;
cin >> n >> m;
const ll inf = 3e18;
vector<ll> a(n), b(n);
for (int i = 0; i < n; ++i) {
cin >> a[i];
}
for (int i = 0; i < n; ++i) {
cin >> b[i];
}
ll L = 0, R = inf;
while (L + 1 < R) {
ll mid = (L + R) >> 1;
auto check = [&]() -> bool {
ll cnt = n * (ll)m;
for (int i = 0; i < n; ++i) {
if (b[i] >= a[i]) {
ll now = (mid + b[i] - 1) / b[i];
cnt -= now;
} else {
ll now = (mid + a[i] - 1) / a[i];
if (now <= m) {
cnt -= now;
} else {
ll whole = m + (mid - a[i] * m + b[i] - 1) / b[i];
cnt -= whole;
}
}
}
return cnt >= 0;
};
if (check()) {
L = mid;
} else {
R = mid;
}
}
cout << L;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
320 KB |
Output is correct |
6 |
Correct |
1 ms |
320 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
0 ms |
316 KB |
Output is correct |
9 |
Correct |
1 ms |
252 KB |
Output is correct |
10 |
Correct |
5 ms |
480 KB |
Output is correct |
11 |
Correct |
208 ms |
5388 KB |
Output is correct |
12 |
Correct |
231 ms |
5392 KB |
Output is correct |
13 |
Correct |
173 ms |
5332 KB |
Output is correct |
14 |
Incorrect |
515 ms |
5332 KB |
Output isn't correct |
15 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
316 KB |
Output is correct |
3 |
Correct |
1 ms |
324 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
320 KB |
Output is correct |
9 |
Correct |
98 ms |
3040 KB |
Output is correct |
10 |
Correct |
64 ms |
2280 KB |
Output is correct |
11 |
Correct |
46 ms |
1868 KB |
Output is correct |
12 |
Correct |
35 ms |
1620 KB |
Output is correct |
13 |
Correct |
1 ms |
340 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
212 KB |
Output is correct |
16 |
Correct |
1 ms |
212 KB |
Output is correct |
17 |
Correct |
1 ms |
212 KB |
Output is correct |
18 |
Incorrect |
7 ms |
460 KB |
Output isn't correct |
19 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
320 KB |
Output is correct |
6 |
Correct |
1 ms |
320 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
0 ms |
316 KB |
Output is correct |
9 |
Correct |
1 ms |
252 KB |
Output is correct |
10 |
Correct |
5 ms |
480 KB |
Output is correct |
11 |
Correct |
208 ms |
5388 KB |
Output is correct |
12 |
Correct |
231 ms |
5392 KB |
Output is correct |
13 |
Correct |
173 ms |
5332 KB |
Output is correct |
14 |
Incorrect |
515 ms |
5332 KB |
Output isn't correct |
15 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
316 KB |
Output is correct |
3 |
Correct |
1 ms |
324 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
320 KB |
Output is correct |
9 |
Correct |
98 ms |
3040 KB |
Output is correct |
10 |
Correct |
64 ms |
2280 KB |
Output is correct |
11 |
Correct |
46 ms |
1868 KB |
Output is correct |
12 |
Correct |
35 ms |
1620 KB |
Output is correct |
13 |
Correct |
1 ms |
340 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
212 KB |
Output is correct |
16 |
Correct |
1 ms |
212 KB |
Output is correct |
17 |
Correct |
1 ms |
212 KB |
Output is correct |
18 |
Incorrect |
7 ms |
460 KB |
Output isn't correct |
19 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
320 KB |
Output is correct |
6 |
Correct |
1 ms |
320 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
0 ms |
316 KB |
Output is correct |
9 |
Correct |
1 ms |
252 KB |
Output is correct |
10 |
Correct |
5 ms |
480 KB |
Output is correct |
11 |
Correct |
208 ms |
5388 KB |
Output is correct |
12 |
Correct |
231 ms |
5392 KB |
Output is correct |
13 |
Correct |
173 ms |
5332 KB |
Output is correct |
14 |
Incorrect |
515 ms |
5332 KB |
Output isn't correct |
15 |
Halted |
0 ms |
0 KB |
- |