oj.uz

Submission #1094562

# Submission time Handle Problem Language Result Execution time Memory
1094562 2024-09-29T23:09:11 Z stefdasca Self Study (JOI22_ho_t2) C++14
100 / 100
 129 ms 8024 KB 
// 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;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory 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

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory 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

Subtask #3
27.0 / 27.0

# Verdict Execution time Memory 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

Subtask #4
29.0 / 29.0

# Verdict Execution time Memory 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

Subtask #5
9.0 / 9.0

# Verdict Execution time Memory 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