oj.uz

답안 #504118

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
504118 2022-01-09T20:58:03 Z colossal_pepe Pinball (JOI14_pinball) C++17
100 / 100
 220 ms 17552 KB 
#include <iostream>
#include <vector>
#include <set>
#include <algorithm>
using namespace std;

typedef long long ll;

const ll INF = 1e18;
const int MAXN = 100005;

int n, m, a[MAXN], b[MAXN], c[MAXN];
ll d[MAXN];
vector<ll> v;
vector<vector<ll>> dp;

void compress() {
    set<ll> s;
    for (int i = 0; i < n; i++) {
        if (s.find(c[i]) != s.end()) continue;
        s.insert(c[i]);
        v.push_back(c[i]);
    }
    sort(v.begin(), v.end());
}

ll query(int tree, int node, int l, int r, int L, int R) {
    if (r < L or l >= R) return INF;
    int mid = (l + r) / 2;
    if (L <= l and r < R) return dp[tree][node];
    else return min(query(tree, 2 * node, l, mid, L, R), query(tree, (2 * node) + 1, mid + 1, r, L, R));
}

void update(int tree, int node, int l, int r, int pos, ll x) {
    if (l == r) dp[tree][node] = min(dp[tree][node], x);
    else {
        int mid = (l + r) / 2;
        if (pos > mid) update(tree, (2 * node) + 1, mid + 1, r, pos, x);
        else update(tree, 2 * node, l, mid, pos, x);
        dp[tree][node] = min(dp[tree][2 * node], dp[tree][(2 * node) + 1]);
    }
}

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cin >> n >> m;
    for (int i = 0; i < n; i++) {
        cin >> a[i] >> b[i] >> c[i] >> d[i];
    }
    compress();
    int sz = v.size();
    dp.resize(2, vector<ll>(4 * sz, INF));
    ll ans = INF;
    for (int i = 0; i < n; i++) {
        ll ansl = INF, ansr = INF;
        if (a[i] == 1) ansl = d[i];
        if (b[i] == m) ansr = d[i];
        int l = lower_bound(v.begin(), v.end(), a[i]) - v.begin();
        int r = upper_bound(v.begin(), v.end(), b[i]) - v.begin();
        ansl = min(ansl, query(0, 1, 0, sz - 1, l, r) + d[i]);
        ansr = min(ansr, query(1, 1, 0, sz - 1, l, r) + d[i]);
        int pos = lower_bound(v.begin(), v.end(), c[i]) - v.begin();
        if (ansl != INF and ansr != INF) ans = min(ans, ansl + ansr - d[i]);
        update(0, 1, 0, sz - 1, pos, ansl);
        update(1, 1, 0, sz - 1, pos, ansr);
    }
    cout << (ans != INF ? ans : -1) << '\n';
    return 0;
}

Subtask #1
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 0 ms 332 KB Output is correct
7 Correct 0 ms 332 KB Output is correct
8 Correct 0 ms 320 KB Output is correct

Subtask #2
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 0 ms 332 KB Output is correct
7 Correct 0 ms 332 KB Output is correct
8 Correct 0 ms 320 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 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 1 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 0 ms 332 KB Output is correct
7 Correct 0 ms 332 KB Output is correct
8 Correct 0 ms 320 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 0 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 2 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 2 ms 460 KB Output is correct
20 Correct 1 ms 372 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 2 ms 460 KB Output is correct
23 Correct 1 ms 460 KB Output is correct
24 Correct 2 ms 460 KB Output is correct

Subtask #4
49.0 / 49.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 0 ms 332 KB Output is correct
7 Correct 0 ms 332 KB Output is correct
8 Correct 0 ms 320 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 0 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 2 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 2 ms 460 KB Output is correct
20 Correct 1 ms 372 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 2 ms 460 KB Output is correct
23 Correct 1 ms 460 KB Output is correct
24 Correct 2 ms 460 KB Output is correct
25 Correct 16 ms 1604 KB Output is correct
26 Correct 49 ms 3996 KB Output is correct
27 Correct 133 ms 8508 KB Output is correct
28 Correct 115 ms 2860 KB Output is correct
29 Correct 92 ms 7000 KB Output is correct
30 Correct 146 ms 3948 KB Output is correct
31 Correct 200 ms 13104 KB Output is correct
32 Correct 191 ms 11344 KB Output is correct
33 Correct 29 ms 3040 KB Output is correct
34 Correct 101 ms 8928 KB Output is correct
35 Correct 147 ms 17436 KB Output is correct
36 Correct 220 ms 17464 KB Output is correct
37 Correct 189 ms 17536 KB Output is correct
38 Correct 188 ms 17552 KB Output is correct