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답안 #361450

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
361450 2021-01-30T08:43:00 Z RyoPham Pinball (JOI14_pinball) C++14
100 / 100
 374 ms 26984 KB 
#define taskname "test"

#include <bits/stdc++.h>

using namespace std;

#define sz(x) (int)x.size()
#define fi first
#define se second

typedef long long lli;
typedef pair<int, int> pii;

const int maxn = 3e5 + 5;
const lli inf = 1e18;

int n, m;
int a[maxn], b[maxn], c[maxn], d[maxn];

vector<int> vals;

struct segment_tree
{
    lli min_val[maxn * 4];

    segment_tree()
    {
        fill(begin(min_val), end(min_val), inf);
    }

    void update(int x, int l, int r, int p, lli k)
    {
        if(l == r)
        {
            min_val[x] = min(min_val[x], k);
            return;
        }
        int mid = (l + r) / 2;
        if(p <= mid) update(x * 2, l, mid, p, k);
        else update(x * 2 + 1, mid + 1, r, p, k);
        min_val[x] = min(min_val[x * 2], min_val[x * 2 + 1]);
    }

    lli get(int x, int l, int r, int L, int R)
    {
        if(L > r || l > R) return inf;
        if(l >= L && r <= R)
            return min_val[x];
        int mid = (l + r) / 2;
        return min(get(x * 2, l, mid, L, R),
                   get(x * 2 + 1, mid + 1, r, L, R));
    }
};

segment_tree tree_f, tree_g;

void read_input()
{
    cin >> n >> m;
    for(int i = 1; i <= n; ++i)
        cin >> a[i] >> b[i] >> c[i] >> d[i];
}

int lwb(const vector<int>&arr, int k)
{
    return lower_bound(arr.begin(), arr.end(), k) - arr.begin() + 1;
}

void init()
{
    vals.push_back(1);
    vals.push_back(m);
    for(int i = 1; i <= n; ++i)
    {
        vals.push_back(a[i]);
        vals.push_back(b[i]);
        vals.push_back(c[i]);
    }
    sort(vals.begin(), vals.end());
    vals.erase(unique(vals.begin(), vals.end()), vals.end());
    m = sz(vals);
    for(int i = 1; i <= n; ++i)
    {
        a[i] = lwb(vals, a[i]);
        b[i] = lwb(vals, b[i]);
        c[i] = lwb(vals, c[i]);
    }
}

void solve()
{
    tree_f.update(1, 1, m, 1, 0);
    tree_g.update(1, 1, m, m, 0);
    lli ans = inf;
    for(int i = 1; i <= n; ++i)
    {
        ans = min(ans, tree_f.get(1, 1, m, a[i], b[i]) + tree_g.get(1, 1, m, a[i], b[i]) + d[i]);
        lli k = tree_f.get(1, 1, m, a[i], b[i]) + d[i];
        tree_f.update(1, 1, m, c[i], k);
        k = tree_g.get(1, 1, m, a[i], b[i]) + d[i];
        tree_g.update(1, 1, m, c[i], k);
    }
    if(ans == inf) ans = -1;
    cout << ans << '\n';
}

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    read_input();
    init();
    solve();
}

Subtask #1
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 18 ms 19180 KB Output is correct
2 Correct 12 ms 19180 KB Output is correct
3 Correct 12 ms 19180 KB Output is correct
4 Correct 12 ms 19180 KB Output is correct
5 Correct 14 ms 19308 KB Output is correct
6 Correct 13 ms 19180 KB Output is correct
7 Correct 15 ms 19308 KB Output is correct
8 Correct 12 ms 19180 KB Output is correct

Subtask #2
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 18 ms 19180 KB Output is correct
2 Correct 12 ms 19180 KB Output is correct
3 Correct 12 ms 19180 KB Output is correct
4 Correct 12 ms 19180 KB Output is correct
5 Correct 14 ms 19308 KB Output is correct
6 Correct 13 ms 19180 KB Output is correct
7 Correct 15 ms 19308 KB Output is correct
8 Correct 12 ms 19180 KB Output is correct
9 Correct 12 ms 19180 KB Output is correct
10 Correct 12 ms 19180 KB Output is correct
11 Correct 12 ms 19180 KB Output is correct
12 Correct 12 ms 19180 KB Output is correct
13 Correct 13 ms 19180 KB Output is correct
14 Correct 12 ms 19180 KB Output is correct

Subtask #3
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 18 ms 19180 KB Output is correct
2 Correct 12 ms 19180 KB Output is correct
3 Correct 12 ms 19180 KB Output is correct
4 Correct 12 ms 19180 KB Output is correct
5 Correct 14 ms 19308 KB Output is correct
6 Correct 13 ms 19180 KB Output is correct
7 Correct 15 ms 19308 KB Output is correct
8 Correct 12 ms 19180 KB Output is correct
9 Correct 12 ms 19180 KB Output is correct
10 Correct 12 ms 19180 KB Output is correct
11 Correct 12 ms 19180 KB Output is correct
12 Correct 12 ms 19180 KB Output is correct
13 Correct 13 ms 19180 KB Output is correct
14 Correct 12 ms 19180 KB Output is correct
15 Correct 13 ms 19180 KB Output is correct
16 Correct 13 ms 19180 KB Output is correct
17 Correct 14 ms 19180 KB Output is correct
18 Correct 14 ms 19180 KB Output is correct
19 Correct 14 ms 19180 KB Output is correct
20 Correct 14 ms 19180 KB Output is correct
21 Correct 14 ms 19180 KB Output is correct
22 Correct 15 ms 19436 KB Output is correct
23 Correct 16 ms 19180 KB Output is correct
24 Correct 14 ms 19200 KB Output is correct

Subtask #4
49.0 / 49.0

# 결과 실행 시간 메모리 Grader output
1 Correct 18 ms 19180 KB Output is correct
2 Correct 12 ms 19180 KB Output is correct
3 Correct 12 ms 19180 KB Output is correct
4 Correct 12 ms 19180 KB Output is correct
5 Correct 14 ms 19308 KB Output is correct
6 Correct 13 ms 19180 KB Output is correct
7 Correct 15 ms 19308 KB Output is correct
8 Correct 12 ms 19180 KB Output is correct
9 Correct 12 ms 19180 KB Output is correct
10 Correct 12 ms 19180 KB Output is correct
11 Correct 12 ms 19180 KB Output is correct
12 Correct 12 ms 19180 KB Output is correct
13 Correct 13 ms 19180 KB Output is correct
14 Correct 12 ms 19180 KB Output is correct
15 Correct 13 ms 19180 KB Output is correct
16 Correct 13 ms 19180 KB Output is correct
17 Correct 14 ms 19180 KB Output is correct
18 Correct 14 ms 19180 KB Output is correct
19 Correct 14 ms 19180 KB Output is correct
20 Correct 14 ms 19180 KB Output is correct
21 Correct 14 ms 19180 KB Output is correct
22 Correct 15 ms 19436 KB Output is correct
23 Correct 16 ms 19180 KB Output is correct
24 Correct 14 ms 19200 KB Output is correct
25 Correct 37 ms 19948 KB Output is correct
26 Correct 83 ms 21128 KB Output is correct
27 Correct 238 ms 23916 KB Output is correct
28 Correct 204 ms 26728 KB Output is correct
29 Correct 168 ms 23020 KB Output is correct
30 Correct 266 ms 26984 KB Output is correct
31 Correct 360 ms 26856 KB Output is correct
32 Correct 372 ms 26856 KB Output is correct
33 Correct 49 ms 20608 KB Output is correct
34 Correct 157 ms 23148 KB Output is correct
35 Correct 209 ms 26856 KB Output is correct
36 Correct 374 ms 26728 KB Output is correct
37 Correct 306 ms 26856 KB Output is correct
38 Correct 304 ms 26728 KB Output is correct