oj.uz

Submission #1094560

# Submission time Handle Problem Language Result Execution time Memory
1094560 2024-09-29T23:07:36 Z stefdasca Self Study (JOI22_ho_t2) C++14
100 / 100
 140 ms 10648 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;
        }
        // subtract comprehension value based on remaining time
        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 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 604 KB Output is correct
11 Correct 116 ms 10060 KB Output is correct
12 Correct 95 ms 10008 KB Output is correct
13 Correct 60 ms 8468 KB Output is correct
14 Correct 70 ms 8276 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 33 ms 6236 KB Output is correct
17 Correct 73 ms 10648 KB Output is correct
18 Correct 73 ms 9808 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 33 ms 6236 KB Output is correct
3 Correct 73 ms 10648 KB Output is correct
4 Correct 73 ms 9808 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 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 35 ms 5448 KB Output is correct
14 Correct 24 ms 3928 KB Output is correct
15 Correct 17 ms 2960 KB Output is correct
16 Correct 15 ms 2432 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 604 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 1 ms 508 KB Output is correct
23 Correct 2 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 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 604 KB Output is correct
11 Correct 116 ms 10060 KB Output is correct
12 Correct 95 ms 10008 KB Output is correct
13 Correct 60 ms 8468 KB Output is correct
14 Correct 70 ms 8276 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 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 35 ms 5448 KB Output is correct
24 Correct 24 ms 3928 KB Output is correct
25 Correct 17 ms 2960 KB Output is correct
26 Correct 15 ms 2432 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 604 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 1 ms 508 KB Output is correct
33 Correct 2 ms 604 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 33 ms 6236 KB Output is correct
36 Correct 73 ms 10648 KB Output is correct
37 Correct 73 ms 9808 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 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 348 KB Output is correct
45 Correct 2 ms 604 KB Output is correct
46 Correct 3 ms 632 KB Output is correct
47 Correct 1 ms 344 KB Output is correct
48 Correct 17 ms 2228 KB Output is correct
49 Correct 0 ms 348 KB Output is correct
50 Correct 0 ms 348 KB Output is correct
51 Correct 2 ms 604 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 49 ms 5388 KB Output is correct
56 Correct 21 ms 3160 KB Output is correct
57 Correct 22 ms 3288 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 1 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 35 ms 5448 KB Output is correct
10 Correct 24 ms 3928 KB Output is correct
11 Correct 17 ms 2960 KB Output is correct
12 Correct 15 ms 2432 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 604 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 508 KB Output is correct
19 Correct 2 ms 604 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 33 ms 6236 KB Output is correct
22 Correct 73 ms 10648 KB Output is correct
23 Correct 73 ms 9808 KB Output is correct
24 Correct 14 ms 2028 KB Output is correct
25 Correct 37 ms 5156 KB Output is correct
26 Correct 8 ms 1380 KB Output is correct
27 Correct 68 ms 9936 KB Output is correct
28 Correct 70 ms 9812 KB Output is correct
29 Correct 71 ms 10024 KB Output is correct
30 Correct 75 ms 9944 KB Output is correct
31 Correct 88 ms 9812 KB Output is correct
32 Correct 52 ms 6232 KB Output is correct
33 Correct 92 ms 10584 KB Output is correct
34 Correct 52 ms 6304 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 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 604 KB Output is correct
11 Correct 116 ms 10060 KB Output is correct
12 Correct 95 ms 10008 KB Output is correct
13 Correct 60 ms 8468 KB Output is correct
14 Correct 70 ms 8276 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 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 35 ms 5448 KB Output is correct
24 Correct 24 ms 3928 KB Output is correct
25 Correct 17 ms 2960 KB Output is correct
26 Correct 15 ms 2432 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 604 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 1 ms 508 KB Output is correct
33 Correct 2 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 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 348 KB Output is correct
41 Correct 2 ms 604 KB Output is correct
42 Correct 3 ms 632 KB Output is correct
43 Correct 1 ms 344 KB Output is correct
44 Correct 17 ms 2228 KB Output is correct
45 Correct 0 ms 348 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 2 ms 604 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 49 ms 5388 KB Output is correct
52 Correct 21 ms 3160 KB Output is correct
53 Correct 22 ms 3288 KB Output is correct
54 Correct 14 ms 2028 KB Output is correct
55 Correct 37 ms 5156 KB Output is correct
56 Correct 8 ms 1380 KB Output is correct
57 Correct 68 ms 9936 KB Output is correct
58 Correct 70 ms 9812 KB Output is correct
59 Correct 71 ms 10024 KB Output is correct
60 Correct 75 ms 9944 KB Output is correct
61 Correct 88 ms 9812 KB Output is correct
62 Correct 52 ms 6232 KB Output is correct
63 Correct 92 ms 10584 KB Output is correct
64 Correct 52 ms 6304 KB Output is correct
65 Correct 0 ms 348 KB Output is correct
66 Correct 33 ms 6236 KB Output is correct
67 Correct 73 ms 10648 KB Output is correct
68 Correct 73 ms 9808 KB Output is correct
69 Correct 19 ms 1596 KB Output is correct
70 Correct 3 ms 604 KB Output is correct
71 Correct 0 ms 344 KB Output is correct
72 Correct 20 ms 1880 KB Output is correct
73 Correct 4 ms 600 KB Output is correct
74 Correct 1 ms 348 KB Output is correct
75 Correct 99 ms 9856 KB Output is correct
76 Correct 108 ms 9824 KB Output is correct
77 Correct 114 ms 10068 KB Output is correct
78 Correct 120 ms 10008 KB Output is correct
79 Correct 137 ms 9808 KB Output is correct
80 Correct 140 ms 9808 KB Output is correct
81 Correct 82 ms 8464 KB Output is correct
82 Correct 127 ms 8276 KB Output is correct