// https://stefdasca.ro -> for tutoring
#include <iostream>
#include <vector>
using namespace std;
int solve(long long target, int n, int m, vector<int> &classes, vector<int> &study) {
long long hours = 1LL * n * m; // how many hours of study i have left
// find out classes for which it's better to go to the courses
for (int i = 0; i < n; i++) {
long long required = target;
if (classes[i] > study[i]) {
long long needed = required / classes[i];
if (required % classes[i] > 0) {
needed++;
}
if (needed > m) {
needed = m;
}
required = max(0LL, required - needed * classes[i]);
hours -= needed;
}
// subtract comprehension value based on remaining time
long long needed = required / study[i];
if (required % study[i] > 0) {
needed++;
}
hours -= needed;
if (hours < 0) {
return 0;
}
}
return 1;
}
int main() {
ios_base::sync_with_stdio(false);
cin.tie(NULL);
int n, m;
cin >> n >> m;
vector <int> classes(n), study(n);
for (int i = 0; i < n; i++) {
cin >> classes[i];
}
for (int i = 0; i < n; i++) {
cin >> study[i];
}
long long L = 0;
long long R = 1e18;
long long ans = 0;
while (L <= R) {
long long mid = (L + R) / 2;
if (solve(mid, n, m, classes, study)) {
ans = mid;
L = mid + 1;
}
else {
R = mid - 1;
}
}
cout << ans << '\n';
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
1 ms |
600 KB |
Output is correct |
6 |
Correct |
0 ms |
604 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
1 ms |
348 KB |
Output is correct |
11 |
Correct |
89 ms |
5904 KB |
Output is correct |
12 |
Correct |
84 ms |
6076 KB |
Output is correct |
13 |
Correct |
51 ms |
4940 KB |
Output is correct |
14 |
Correct |
55 ms |
4948 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
21 ms |
3496 KB |
Output is correct |
17 |
Correct |
61 ms |
6484 KB |
Output is correct |
18 |
Correct |
61 ms |
6216 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
21 ms |
3496 KB |
Output is correct |
3 |
Correct |
61 ms |
6484 KB |
Output is correct |
4 |
Correct |
61 ms |
6216 KB |
Output is correct |
5 |
Correct |
0 ms |
344 KB |
Output is correct |
6 |
Correct |
0 ms |
344 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
31 ms |
3416 KB |
Output is correct |
14 |
Correct |
22 ms |
2392 KB |
Output is correct |
15 |
Correct |
17 ms |
2016 KB |
Output is correct |
16 |
Correct |
13 ms |
1628 KB |
Output is correct |
17 |
Correct |
1 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
1 ms |
348 KB |
Output is correct |
23 |
Correct |
1 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
1 ms |
600 KB |
Output is correct |
6 |
Correct |
0 ms |
604 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
1 ms |
348 KB |
Output is correct |
11 |
Correct |
89 ms |
5904 KB |
Output is correct |
12 |
Correct |
84 ms |
6076 KB |
Output is correct |
13 |
Correct |
51 ms |
4940 KB |
Output is correct |
14 |
Correct |
55 ms |
4948 KB |
Output is correct |
15 |
Correct |
0 ms |
344 KB |
Output is correct |
16 |
Correct |
0 ms |
344 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
348 KB |
Output is correct |
23 |
Correct |
31 ms |
3416 KB |
Output is correct |
24 |
Correct |
22 ms |
2392 KB |
Output is correct |
25 |
Correct |
17 ms |
2016 KB |
Output is correct |
26 |
Correct |
13 ms |
1628 KB |
Output is correct |
27 |
Correct |
1 ms |
348 KB |
Output is correct |
28 |
Correct |
0 ms |
348 KB |
Output is correct |
29 |
Correct |
0 ms |
348 KB |
Output is correct |
30 |
Correct |
0 ms |
348 KB |
Output is correct |
31 |
Correct |
0 ms |
348 KB |
Output is correct |
32 |
Correct |
1 ms |
348 KB |
Output is correct |
33 |
Correct |
1 ms |
348 KB |
Output is correct |
34 |
Correct |
0 ms |
348 KB |
Output is correct |
35 |
Correct |
21 ms |
3496 KB |
Output is correct |
36 |
Correct |
61 ms |
6484 KB |
Output is correct |
37 |
Correct |
61 ms |
6216 KB |
Output is correct |
38 |
Correct |
0 ms |
600 KB |
Output is correct |
39 |
Correct |
0 ms |
348 KB |
Output is correct |
40 |
Correct |
0 ms |
344 KB |
Output is correct |
41 |
Correct |
0 ms |
348 KB |
Output is correct |
42 |
Correct |
0 ms |
348 KB |
Output is correct |
43 |
Correct |
0 ms |
348 KB |
Output is correct |
44 |
Correct |
0 ms |
344 KB |
Output is correct |
45 |
Correct |
2 ms |
344 KB |
Output is correct |
46 |
Correct |
3 ms |
468 KB |
Output is correct |
47 |
Correct |
1 ms |
348 KB |
Output is correct |
48 |
Correct |
15 ms |
1492 KB |
Output is correct |
49 |
Correct |
1 ms |
348 KB |
Output is correct |
50 |
Correct |
0 ms |
348 KB |
Output is correct |
51 |
Correct |
2 ms |
348 KB |
Output is correct |
52 |
Correct |
0 ms |
348 KB |
Output is correct |
53 |
Correct |
0 ms |
348 KB |
Output is correct |
54 |
Correct |
0 ms |
348 KB |
Output is correct |
55 |
Correct |
46 ms |
3952 KB |
Output is correct |
56 |
Correct |
18 ms |
2396 KB |
Output is correct |
57 |
Correct |
19 ms |
2396 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
344 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
31 ms |
3416 KB |
Output is correct |
10 |
Correct |
22 ms |
2392 KB |
Output is correct |
11 |
Correct |
17 ms |
2016 KB |
Output is correct |
12 |
Correct |
13 ms |
1628 KB |
Output is correct |
13 |
Correct |
1 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
1 ms |
348 KB |
Output is correct |
19 |
Correct |
1 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
21 ms |
3496 KB |
Output is correct |
22 |
Correct |
61 ms |
6484 KB |
Output is correct |
23 |
Correct |
61 ms |
6216 KB |
Output is correct |
24 |
Correct |
13 ms |
1628 KB |
Output is correct |
25 |
Correct |
33 ms |
3660 KB |
Output is correct |
26 |
Correct |
7 ms |
1112 KB |
Output is correct |
27 |
Correct |
60 ms |
7508 KB |
Output is correct |
28 |
Correct |
62 ms |
7508 KB |
Output is correct |
29 |
Correct |
72 ms |
7508 KB |
Output is correct |
30 |
Correct |
69 ms |
7508 KB |
Output is correct |
31 |
Correct |
77 ms |
7412 KB |
Output is correct |
32 |
Correct |
41 ms |
3932 KB |
Output is correct |
33 |
Correct |
84 ms |
8024 KB |
Output is correct |
34 |
Correct |
46 ms |
3928 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
1 ms |
600 KB |
Output is correct |
6 |
Correct |
0 ms |
604 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
1 ms |
348 KB |
Output is correct |
11 |
Correct |
89 ms |
5904 KB |
Output is correct |
12 |
Correct |
84 ms |
6076 KB |
Output is correct |
13 |
Correct |
51 ms |
4940 KB |
Output is correct |
14 |
Correct |
55 ms |
4948 KB |
Output is correct |
15 |
Correct |
0 ms |
344 KB |
Output is correct |
16 |
Correct |
0 ms |
344 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
348 KB |
Output is correct |
23 |
Correct |
31 ms |
3416 KB |
Output is correct |
24 |
Correct |
22 ms |
2392 KB |
Output is correct |
25 |
Correct |
17 ms |
2016 KB |
Output is correct |
26 |
Correct |
13 ms |
1628 KB |
Output is correct |
27 |
Correct |
1 ms |
348 KB |
Output is correct |
28 |
Correct |
0 ms |
348 KB |
Output is correct |
29 |
Correct |
0 ms |
348 KB |
Output is correct |
30 |
Correct |
0 ms |
348 KB |
Output is correct |
31 |
Correct |
0 ms |
348 KB |
Output is correct |
32 |
Correct |
1 ms |
348 KB |
Output is correct |
33 |
Correct |
1 ms |
348 KB |
Output is correct |
34 |
Correct |
0 ms |
600 KB |
Output is correct |
35 |
Correct |
0 ms |
348 KB |
Output is correct |
36 |
Correct |
0 ms |
344 KB |
Output is correct |
37 |
Correct |
0 ms |
348 KB |
Output is correct |
38 |
Correct |
0 ms |
348 KB |
Output is correct |
39 |
Correct |
0 ms |
348 KB |
Output is correct |
40 |
Correct |
0 ms |
344 KB |
Output is correct |
41 |
Correct |
2 ms |
344 KB |
Output is correct |
42 |
Correct |
3 ms |
468 KB |
Output is correct |
43 |
Correct |
1 ms |
348 KB |
Output is correct |
44 |
Correct |
15 ms |
1492 KB |
Output is correct |
45 |
Correct |
1 ms |
348 KB |
Output is correct |
46 |
Correct |
0 ms |
348 KB |
Output is correct |
47 |
Correct |
2 ms |
348 KB |
Output is correct |
48 |
Correct |
0 ms |
348 KB |
Output is correct |
49 |
Correct |
0 ms |
348 KB |
Output is correct |
50 |
Correct |
0 ms |
348 KB |
Output is correct |
51 |
Correct |
46 ms |
3952 KB |
Output is correct |
52 |
Correct |
18 ms |
2396 KB |
Output is correct |
53 |
Correct |
19 ms |
2396 KB |
Output is correct |
54 |
Correct |
13 ms |
1628 KB |
Output is correct |
55 |
Correct |
33 ms |
3660 KB |
Output is correct |
56 |
Correct |
7 ms |
1112 KB |
Output is correct |
57 |
Correct |
60 ms |
7508 KB |
Output is correct |
58 |
Correct |
62 ms |
7508 KB |
Output is correct |
59 |
Correct |
72 ms |
7508 KB |
Output is correct |
60 |
Correct |
69 ms |
7508 KB |
Output is correct |
61 |
Correct |
77 ms |
7412 KB |
Output is correct |
62 |
Correct |
41 ms |
3932 KB |
Output is correct |
63 |
Correct |
84 ms |
8024 KB |
Output is correct |
64 |
Correct |
46 ms |
3928 KB |
Output is correct |
65 |
Correct |
0 ms |
348 KB |
Output is correct |
66 |
Correct |
21 ms |
3496 KB |
Output is correct |
67 |
Correct |
61 ms |
6484 KB |
Output is correct |
68 |
Correct |
61 ms |
6216 KB |
Output is correct |
69 |
Correct |
13 ms |
1112 KB |
Output is correct |
70 |
Correct |
3 ms |
672 KB |
Output is correct |
71 |
Correct |
0 ms |
348 KB |
Output is correct |
72 |
Correct |
19 ms |
1436 KB |
Output is correct |
73 |
Correct |
4 ms |
604 KB |
Output is correct |
74 |
Correct |
0 ms |
348 KB |
Output is correct |
75 |
Correct |
88 ms |
7564 KB |
Output is correct |
76 |
Correct |
95 ms |
7404 KB |
Output is correct |
77 |
Correct |
100 ms |
7480 KB |
Output is correct |
78 |
Correct |
113 ms |
7504 KB |
Output is correct |
79 |
Correct |
127 ms |
7508 KB |
Output is correct |
80 |
Correct |
129 ms |
7508 KB |
Output is correct |
81 |
Correct |
72 ms |
6096 KB |
Output is correct |
82 |
Correct |
117 ms |
6092 KB |
Output is correct |