oj.uz

Submission #519436

# Submission time Handle Problem Language Result Execution time Memory
519436 2022-01-26T11:00:30 Z Jomnoi Lasers (NOI19_lasers) C++17
100 / 100
 167 ms 58464 KB 
#include <bits/stdc++.h>
#define DEBUG 0
using namespace std;

int main() {
    cin.tie(0)->sync_with_stdio(0);
    int L, R;
    cin >> L >> R;
    vector <vector <int>> qs(R + 10);
    vector <int> sz(R + 10);
    for(int i = 1; i <= R; i++) {
        int X;
        cin >> X;
        sz[i] = X;
        qs[i].resize(X + 10, 0);
        for(int j = 1; j <= X; j++) {
            int a;
            cin >> a;
            qs[i][j] = qs[i][j - 1] + a;
        }
    }

    vector <pair <int, int>> vec;
    for(int i = 1; i <= R; i++) {
        for(int j = 1; j <= sz[i]; j++) {
            int a = qs[i][j] - qs[i][j - 1];
            int pos_left = qs[i][j - 1] + 1;
            int pos_right = L - (qs[i][sz[i]] - qs[i][j]);
            
            if(pos_left + a - 1 < pos_right - a + 1) {
                continue;
            }

            vec.emplace_back(pos_right - a + 1, 1);
            vec.emplace_back(pos_left + a, -1);
        }
    }

    sort(vec.begin(), vec.end());

    int ans = 0, left = -1, sum = 0;
    for(auto [v, d] : vec) {
        sum += d;
        if(left == -1) {
            left = v;
        }
        if(sum == 0) {
            ans += v - left;
            left = -1;
        }
    }
    cout << ans;
    return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 312 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 312 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 156 ms 58464 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 149 ms 55004 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 39 ms 5664 KB Output is correct
2 Correct 9 ms 1356 KB Output is correct
3 Correct 8 ms 1232 KB Output is correct
4 Correct 45 ms 6376 KB Output is correct
5 Correct 25 ms 3392 KB Output is correct
6 Correct 33 ms 3768 KB Output is correct
7 Correct 1 ms 460 KB Output is correct
8 Correct 28 ms 4164 KB Output is correct
9 Correct 21 ms 5564 KB Output is correct
10 Correct 50 ms 6500 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 0 ms 312 KB Output is correct

Subtask #5
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 39 ms 5664 KB Output is correct
2 Correct 9 ms 1356 KB Output is correct
3 Correct 8 ms 1232 KB Output is correct
4 Correct 45 ms 6376 KB Output is correct
5 Correct 25 ms 3392 KB Output is correct
6 Correct 33 ms 3768 KB Output is correct
7 Correct 1 ms 460 KB Output is correct
8 Correct 28 ms 4164 KB Output is correct
9 Correct 21 ms 5564 KB Output is correct
10 Correct 50 ms 6500 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 0 ms 312 KB Output is correct
21 Correct 157 ms 53412 KB Output is correct
22 Correct 22 ms 2532 KB Output is correct
23 Correct 11 ms 2096 KB Output is correct
24 Correct 43 ms 7348 KB Output is correct
25 Correct 152 ms 53456 KB Output is correct
26 Correct 38 ms 6792 KB Output is correct
27 Correct 15 ms 2372 KB Output is correct
28 Correct 152 ms 53276 KB Output is correct
29 Correct 151 ms 53568 KB Output is correct
30 Correct 46 ms 4636 KB Output is correct

Subtask #6
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 312 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 156 ms 58464 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 149 ms 55004 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 39 ms 5664 KB Output is correct
22 Correct 9 ms 1356 KB Output is correct
23 Correct 8 ms 1232 KB Output is correct
24 Correct 45 ms 6376 KB Output is correct
25 Correct 25 ms 3392 KB Output is correct
26 Correct 33 ms 3768 KB Output is correct
27 Correct 1 ms 460 KB Output is correct
28 Correct 28 ms 4164 KB Output is correct
29 Correct 21 ms 5564 KB Output is correct
30 Correct 50 ms 6500 KB Output is correct
31 Correct 0 ms 332 KB Output is correct
32 Correct 0 ms 204 KB Output is correct
33 Correct 1 ms 204 KB Output is correct
34 Correct 1 ms 204 KB Output is correct
35 Correct 1 ms 204 KB Output is correct
36 Correct 1 ms 332 KB Output is correct
37 Correct 1 ms 332 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 1 ms 332 KB Output is correct
40 Correct 0 ms 312 KB Output is correct
41 Correct 157 ms 53412 KB Output is correct
42 Correct 22 ms 2532 KB Output is correct
43 Correct 11 ms 2096 KB Output is correct
44 Correct 43 ms 7348 KB Output is correct
45 Correct 152 ms 53456 KB Output is correct
46 Correct 38 ms 6792 KB Output is correct
47 Correct 15 ms 2372 KB Output is correct
48 Correct 152 ms 53276 KB Output is correct
49 Correct 151 ms 53568 KB Output is correct
50 Correct 46 ms 4636 KB Output is correct
51 Correct 16 ms 2500 KB Output is correct
52 Correct 167 ms 54424 KB Output is correct
53 Correct 162 ms 54516 KB Output is correct
54 Correct 30 ms 4788 KB Output is correct
55 Correct 74 ms 9592 KB Output is correct
56 Correct 43 ms 7384 KB Output is correct
57 Correct 48 ms 7788 KB Output is correct
58 Correct 160 ms 54928 KB Output is correct
59 Correct 34 ms 4804 KB Output is correct
60 Correct 48 ms 5936 KB Output is correct