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Submission #568637

# Submission time Handle Problem Language Result Execution time Memory
568637 2022-05-25T22:32:12 Z four_specks Strange Device (APIO19_strange_device) C++17
35 / 100
 504 ms 58020 KB 
#include <bits/stdc++.h>

using namespace std;

inline namespace
{
} // namespace

void solve()
{
    int n;
    long a, b;
    cin >> n >> a >> b;

    vector<array<long, 2>> v(n);
    for (auto &[x, y] : v)
        cin >> x >> y, ++y;

    long c = a * b / gcd(a, b + 1);

    vector<array<long, 2>> u;
    for (auto [x, y] : v)
    {
        if (y - x >= c)
            u.push_back({0, c});
        else
        {
            x %= c, y %= c;
            if (x < y)
                u.push_back({x, y});
            else
                u.push_back({x, c}), u.push_back({0, y});
        }
    }
    sort(u.begin(), u.end());

    long cnt = 0;

    long d = 0;
    for (auto [x, y] : u)
    {
        if (y > d)
        {
            cnt += y - max(x, d);
            d = y;
        }
    }

    cout << cnt << '\n';
}

int main()
{
    ios_base::sync_with_stdio(false), cin.tie(NULL);

    solve();

    return 0;
}

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 5 ms 1244 KB Output is correct
3 Correct 6 ms 1248 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 320 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 328 KB Output is correct
13 Correct 1 ms 320 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 5 ms 1244 KB Output is correct
17 Correct 50 ms 7760 KB Output is correct
18 Incorrect 1 ms 212 KB Output isn't correct
19 Halted 0 ms 0 KB -

Subtask #2
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 320 KB Output is correct
2 Correct 0 ms 316 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Incorrect 1 ms 212 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 328 ms 33204 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 474 ms 44872 KB Output is correct
3 Correct 442 ms 33768 KB Output is correct
4 Correct 468 ms 56228 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 474 ms 44872 KB Output is correct
3 Correct 442 ms 33768 KB Output is correct
4 Correct 468 ms 56228 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 459 ms 57580 KB Output is correct
7 Correct 460 ms 57124 KB Output is correct
8 Correct 453 ms 57988 KB Output is correct
9 Correct 482 ms 56824 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 474 ms 44872 KB Output is correct
3 Correct 442 ms 33768 KB Output is correct
4 Correct 468 ms 56228 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 44 ms 7748 KB Output is correct
7 Correct 47 ms 7768 KB Output is correct
8 Correct 47 ms 7772 KB Output is correct
9 Correct 43 ms 7752 KB Output is correct
10 Correct 44 ms 7760 KB Output is correct
11 Correct 47 ms 7744 KB Output is correct
12 Correct 43 ms 7744 KB Output is correct
13 Correct 47 ms 7740 KB Output is correct
14 Correct 42 ms 7764 KB Output is correct
15 Correct 47 ms 7764 KB Output is correct
16 Correct 48 ms 7760 KB Output is correct
17 Correct 45 ms 7748 KB Output is correct
18 Correct 462 ms 58020 KB Output is correct
19 Correct 445 ms 56472 KB Output is correct
20 Correct 504 ms 57288 KB Output is correct
21 Correct 48 ms 7760 KB Output is correct
22 Correct 44 ms 7764 KB Output is correct
23 Correct 139 ms 26488 KB Output is correct

Subtask #7
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 47 ms 7748 KB Output is correct
3 Correct 45 ms 7760 KB Output is correct
4 Correct 488 ms 33992 KB Output is correct
5 Correct 49 ms 7748 KB Output is correct
6 Correct 47 ms 7748 KB Output is correct
7 Correct 47 ms 7748 KB Output is correct
8 Correct 49 ms 7748 KB Output is correct
9 Correct 49 ms 7748 KB Output is correct
10 Correct 47 ms 7756 KB Output is correct
11 Correct 46 ms 7740 KB Output is correct
12 Correct 40 ms 7752 KB Output is correct
13 Correct 47 ms 7748 KB Output is correct
14 Correct 479 ms 34016 KB Output is correct
15 Correct 47 ms 7748 KB Output is correct
16 Correct 432 ms 38588 KB Output is correct
17 Correct 441 ms 45496 KB Output is correct
18 Incorrect 1 ms 212 KB Output isn't correct
19 Halted 0 ms 0 KB -

Subtask #8
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 5 ms 1244 KB Output is correct
3 Correct 6 ms 1248 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 320 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 328 KB Output is correct
13 Correct 1 ms 320 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 5 ms 1244 KB Output is correct
17 Correct 50 ms 7760 KB Output is correct
18 Incorrect 1 ms 212 KB Output isn't correct
19 Halted 0 ms 0 KB -