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답안 #695209

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
695209 2023-02-04T19:27:51 Z four_specks Pinball (JOI14_pinball) C++17
100 / 100
 78 ms 12512 KB 
#include <bits/stdc++.h>

using namespace std;

namespace
{
} // namespace

void solve()
{
    int m, n;
    cin >> m >> n;

    vector<tuple<long, long, long, long>> v(m);
    for (auto &[a, b, c, d] : v)
        cin >> a >> b >> c >> d, --a, --b, --c;

    long cost = LONG_MAX;

    map<long, long> ft, bk;
    ft.emplace(0, 0);
    bk.emplace(n - 1, 0);
    for (auto [a, b, c, d] : v)
    {
        {
            auto it_ft = ft.lower_bound(a), it_bk = bk.upper_bound(b);
            if (it_ft != ft.end() && it_bk != bk.begin())
                cost = min(cost, it_ft->second + prev(it_bk)->second + d);
        }
        {
            auto it = ft.lower_bound(a);
            if (it != ft.end())
            {
                long x = it->second;

                it = ft.lower_bound(c);
                if (it == ft.end() || x + d < it->second)
                {
                    it = ft.upper_bound(c);
                    while (it != ft.begin() && prev(it)->second > x + d)
                        ft.erase(prev(it));
                    ft.emplace(c, x + d);
                }
            }
        }
        {
            auto it = bk.upper_bound(b);
            if (it != bk.begin())
            {
                long x = prev(it)->second;

                it = bk.upper_bound(c);
                if (it == bk.begin() || x + d < prev(it)->second)
                {
                    it = bk.lower_bound(c);
                    while (it != bk.end() && it->second > x + d)
                        it = bk.erase(it);
                    bk.emplace(c, x + d);
                }
            }
        }
    }

    cout << (cost != LONG_MAX ? cost : -1) << '\n';
}

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

    solve();

    return 0;
}

Subtask #1
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 320 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 320 KB Output is correct
6 Correct 0 ms 328 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct

Subtask #2
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 320 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 320 KB Output is correct
6 Correct 0 ms 328 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 332 KB Output is correct

Subtask #3
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 320 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 320 KB Output is correct
6 Correct 0 ms 328 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 396 KB Output is correct
18 Correct 1 ms 396 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 2 ms 340 KB Output is correct
24 Correct 1 ms 336 KB Output is correct

Subtask #4
49.0 / 49.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 320 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 320 KB Output is correct
6 Correct 0 ms 328 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 396 KB Output is correct
18 Correct 1 ms 396 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 2 ms 340 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 5 ms 888 KB Output is correct
26 Correct 11 ms 2004 KB Output is correct
27 Correct 32 ms 4936 KB Output is correct
28 Correct 47 ms 7228 KB Output is correct
29 Correct 27 ms 3788 KB Output is correct
30 Correct 48 ms 7276 KB Output is correct
31 Correct 47 ms 7244 KB Output is correct
32 Correct 45 ms 7284 KB Output is correct
33 Correct 13 ms 2380 KB Output is correct
34 Correct 25 ms 3796 KB Output is correct
35 Correct 78 ms 12512 KB Output is correct
36 Correct 51 ms 7244 KB Output is correct
37 Correct 63 ms 8152 KB Output is correct
38 Correct 67 ms 8684 KB Output is correct