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Submission #1094559

# Submission time Handle Problem Language Result Execution time Memory
1094559 2024-09-29T23:05:31 Z stefdasca Self Study (JOI22_ho_t2) C++14
100 / 100
 190 ms 9576 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) {
    vector <long long> required(n);
    for (int i = 0; i < n; i++) {
        required[i] = target;
    }
    
    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++) {
        if (classes[i] > study[i]) {
            long long needed = required[i] / classes[i];
            if (required[i] % classes[i] > 0) {
                needed++;
            }
            
            if (needed > m) {
                needed = m;
            }
            required[i] = max(0LL, required[i] - needed * classes[i]);
            hours -= needed;
            if (hours < 0) {
                return 0;
            }
        }
    }
    
    // subtract comprehension value based on remaining time
    for (int i = 0; i < n; i++) {
        long long needed = required[i] / study[i];
        if (required[i] % 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 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 2 ms 604 KB Output is correct
11 Correct 190 ms 9576 KB Output is correct
12 Correct 179 ms 8016 KB Output is correct
13 Correct 89 ms 7016 KB Output is correct
14 Correct 99 ms 7188 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 60 ms 5732 KB Output is correct
17 Correct 94 ms 8724 KB Output is correct
18 Correct 93 ms 8020 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 60 ms 5732 KB Output is correct
3 Correct 94 ms 8724 KB Output is correct
4 Correct 93 ms 8020 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 452 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 460 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 44 ms 4564 KB Output is correct
14 Correct 31 ms 3164 KB Output is correct
15 Correct 23 ms 2580 KB Output is correct
16 Correct 19 ms 2180 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 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 1 ms 348 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 3 ms 604 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 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 2 ms 604 KB Output is correct
11 Correct 190 ms 9576 KB Output is correct
12 Correct 179 ms 8016 KB Output is correct
13 Correct 89 ms 7016 KB Output is correct
14 Correct 99 ms 7188 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 452 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 460 KB Output is correct
22 Correct 0 ms 344 KB Output is correct
23 Correct 44 ms 4564 KB Output is correct
24 Correct 31 ms 3164 KB Output is correct
25 Correct 23 ms 2580 KB Output is correct
26 Correct 19 ms 2180 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 1 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 1 ms 348 KB Output is correct
32 Correct 1 ms 344 KB Output is correct
33 Correct 3 ms 604 KB Output is correct
34 Correct 0 ms 344 KB Output is correct
35 Correct 60 ms 5732 KB Output is correct
36 Correct 94 ms 8724 KB Output is correct
37 Correct 93 ms 8020 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 348 KB Output is correct
41 Correct 0 ms 344 KB Output is correct
42 Correct 1 ms 348 KB Output is correct
43 Correct 0 ms 452 KB Output is correct
44 Correct 1 ms 348 KB Output is correct
45 Correct 2 ms 604 KB Output is correct
46 Correct 3 ms 604 KB Output is correct
47 Correct 1 ms 348 KB Output is correct
48 Correct 27 ms 1992 KB Output is correct
49 Correct 0 ms 348 KB Output is correct
50 Correct 1 ms 348 KB Output is correct
51 Correct 3 ms 588 KB Output is correct
52 Correct 0 ms 348 KB Output is correct
53 Correct 1 ms 348 KB Output is correct
54 Correct 0 ms 456 KB Output is correct
55 Correct 78 ms 4532 KB Output is correct
56 Correct 27 ms 2652 KB Output is correct
57 Correct 41 ms 2796 KB Output is correct

Subtask #4
29.0 / 29.0

# 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 452 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 460 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 44 ms 4564 KB Output is correct
10 Correct 31 ms 3164 KB Output is correct
11 Correct 23 ms 2580 KB Output is correct
12 Correct 19 ms 2180 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 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 1 ms 348 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 3 ms 604 KB Output is correct
20 Correct 0 ms 344 KB Output is correct
21 Correct 60 ms 5732 KB Output is correct
22 Correct 94 ms 8724 KB Output is correct
23 Correct 93 ms 8020 KB Output is correct
24 Correct 17 ms 1884 KB Output is correct
25 Correct 50 ms 4280 KB Output is correct
26 Correct 17 ms 1376 KB Output is correct
27 Correct 90 ms 8020 KB Output is correct
28 Correct 93 ms 8208 KB Output is correct
29 Correct 92 ms 8032 KB Output is correct
30 Correct 95 ms 8276 KB Output is correct
31 Correct 110 ms 8220 KB Output is correct
32 Correct 70 ms 5880 KB Output is correct
33 Correct 111 ms 8532 KB Output is correct
34 Correct 101 ms 5860 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 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 2 ms 604 KB Output is correct
11 Correct 190 ms 9576 KB Output is correct
12 Correct 179 ms 8016 KB Output is correct
13 Correct 89 ms 7016 KB Output is correct
14 Correct 99 ms 7188 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 452 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 460 KB Output is correct
22 Correct 0 ms 344 KB Output is correct
23 Correct 44 ms 4564 KB Output is correct
24 Correct 31 ms 3164 KB Output is correct
25 Correct 23 ms 2580 KB Output is correct
26 Correct 19 ms 2180 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 1 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 1 ms 348 KB Output is correct
32 Correct 1 ms 344 KB Output is correct
33 Correct 3 ms 604 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 344 KB Output is correct
38 Correct 1 ms 348 KB Output is correct
39 Correct 0 ms 452 KB Output is correct
40 Correct 1 ms 348 KB Output is correct
41 Correct 2 ms 604 KB Output is correct
42 Correct 3 ms 604 KB Output is correct
43 Correct 1 ms 348 KB Output is correct
44 Correct 27 ms 1992 KB Output is correct
45 Correct 0 ms 348 KB Output is correct
46 Correct 1 ms 348 KB Output is correct
47 Correct 3 ms 588 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 1 ms 348 KB Output is correct
50 Correct 0 ms 456 KB Output is correct
51 Correct 78 ms 4532 KB Output is correct
52 Correct 27 ms 2652 KB Output is correct
53 Correct 41 ms 2796 KB Output is correct
54 Correct 17 ms 1884 KB Output is correct
55 Correct 50 ms 4280 KB Output is correct
56 Correct 17 ms 1376 KB Output is correct
57 Correct 90 ms 8020 KB Output is correct
58 Correct 93 ms 8208 KB Output is correct
59 Correct 92 ms 8032 KB Output is correct
60 Correct 95 ms 8276 KB Output is correct
61 Correct 110 ms 8220 KB Output is correct
62 Correct 70 ms 5880 KB Output is correct
63 Correct 111 ms 8532 KB Output is correct
64 Correct 101 ms 5860 KB Output is correct
65 Correct 0 ms 344 KB Output is correct
66 Correct 60 ms 5732 KB Output is correct
67 Correct 94 ms 8724 KB Output is correct
68 Correct 93 ms 8020 KB Output is correct
69 Correct 18 ms 1372 KB Output is correct
70 Correct 3 ms 600 KB Output is correct
71 Correct 0 ms 348 KB Output is correct
72 Correct 25 ms 1860 KB Output is correct
73 Correct 5 ms 604 KB Output is correct
74 Correct 1 ms 472 KB Output is correct
75 Correct 159 ms 8212 KB Output is correct
76 Correct 172 ms 8172 KB Output is correct
77 Correct 167 ms 8212 KB Output is correct
78 Correct 171 ms 8140 KB Output is correct
79 Correct 177 ms 8220 KB Output is correct
80 Correct 188 ms 8212 KB Output is correct
81 Correct 104 ms 7140 KB Output is correct
82 Correct 129 ms 6996 KB Output is correct