Submission #783324

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
783324	2023-07-14T20:45:01 Z	thimote75	Self Study (JOI22_ho_t2)	C++14	0 / 100	356 ms	4984 KB

Main

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

using namespace std;

using idata = vector<int>;

int N, M;

idata As, Bs;

int ceilDiv (int x, int y) {
    return (x + y - 1) / y;
}

int solve (int A, int B, int target) {
    if (A < B) A = B;

    if (A * M >= target)
        return M - ceilDiv(target, A);
    
    int local = target - A * M;

    return - ceilDiv(local, B);
}

bool check (int target) {
    int res = 0;
    for (int i = 0; i < N; i ++) 
        res += solve(As[i], Bs[i], target);
    
    return res >= 0;
}

signed main () {
    cin >> N >> M;

    As.resize(N); Bs.resize(N);
    for (int i = 0; i < N; i ++) cin >> As[i];
    for (int i = 0; i < N; i ++) cin >> Bs[i];

    int a = 0;
    int b = 2e18;
    while (b - a > 1) {
        int c = (a + b) >> 1;

        if (check(c)) a = c;
        else b = c;
    }

    cout << a << endl;
}

Subtask #1

0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	4 ms	340 KB	Output is correct
11	Correct	258 ms	4984 KB	Output is correct
12	Correct	258 ms	4980 KB	Output is correct
13	Correct	244 ms	4984 KB	Output is correct
14	Incorrect	356 ms	4984 KB	Output isn't correct
15	Halted	0 ms	0 KB	-

Subtask #2

0 / 25.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	133 ms	2644 KB	Output is correct
10	Correct	87 ms	1856 KB	Output is correct
11	Correct	65 ms	1364 KB	Output is correct
12	Correct	52 ms	1236 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	0 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	0 ms	212 KB	Output is correct
18	Incorrect	6 ms	340 KB	Output isn't correct
19	Halted	0 ms	0 KB	-

Subtask #3

0 / 27.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	4 ms	340 KB	Output is correct
11	Correct	258 ms	4984 KB	Output is correct
12	Correct	258 ms	4980 KB	Output is correct
13	Correct	244 ms	4984 KB	Output is correct
14	Incorrect	356 ms	4984 KB	Output isn't correct
15	Halted	0 ms	0 KB	-

Subtask #4

0 / 29.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	133 ms	2644 KB	Output is correct
10	Correct	87 ms	1856 KB	Output is correct
11	Correct	65 ms	1364 KB	Output is correct
12	Correct	52 ms	1236 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	0 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	0 ms	212 KB	Output is correct
18	Incorrect	6 ms	340 KB	Output isn't correct
19	Halted	0 ms	0 KB	-

Subtask #5

0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	4 ms	340 KB	Output is correct
11	Correct	258 ms	4984 KB	Output is correct
12	Correct	258 ms	4980 KB	Output is correct
13	Correct	244 ms	4984 KB	Output is correct
14	Incorrect	356 ms	4984 KB	Output isn't correct
15	Halted	0 ms	0 KB	-