oj.uz

답안 #391557

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
391557 2021-04-19T10:39:50 Z KoD Pinball (JOI14_pinball) C++17
100 / 100
 202 ms 12436 KB 
#include <bits/stdc++.h>

template <class T>
using Vec = std::vector<T>;

using ll = long long;

constexpr ll INF = std::numeric_limits<ll>::max() / 3;

struct Segtree {
    int size;
    Vec<ll> min;
    Segtree(const int n): size(n), min(2 * n, INF) { }

    void setmin(int i, const ll x) {
        i += size;
        while (i > 0) {
            min[i] = std::min(min[i], x);
            i >>= 1;
        }
    }

    ll fold(int l, int r) const {
        ll ret = INF;
        l += size;
        r += size;
        while (l < r) {
            if (l & 1) ret = std::min(ret, min[l++]);
            if (r & 1) ret = std::min(ret, min[--r]);
            l >>= 1;
            r >>= 1;
        }
        return ret;
    }
};

int main() {
    std::ios_base::sync_with_stdio(false);
    std::cin.tie(nullptr);
    int H, W;
    std::cin >> H >> W;
    Vec<int> A(H), B(H), C(H), D(H);
    Vec<int> cmp;
    cmp.reserve(3 * H + 2);
    cmp.push_back(1);
    cmp.push_back(W);
    for (int i = 0; i < H; ++i) {
        std::cin >> A[i] >> B[i] >> C[i] >> D[i];
        cmp.push_back(A[i]);
        cmp.push_back(B[i]);
        cmp.push_back(C[i]);
    }
    std::sort(cmp.begin(), cmp.end());
    cmp.erase(std::unique(cmp.begin(), cmp.end()), cmp.end());
    for (auto& x: A) {
        x = std::lower_bound(cmp.begin(), cmp.end(), x) - cmp.begin();
    }
    for (auto& x: B) {
        x = std::lower_bound(cmp.begin(), cmp.end(), x) - cmp.begin();
    }
    for (auto& x: C) {
        x = std::lower_bound(cmp.begin(), cmp.end(), x) - cmp.begin();
    }
    W = (int) cmp.size();
    Segtree left(W), right(W);
    left.setmin(0, 0);
    right.setmin(W - 1, 0);
    ll ans = INF;
    for (int i = 0; i < H; ++i) {
        left.setmin(C[i], left.fold(A[i], C[i]) + D[i]);
        right.setmin(C[i], right.fold(C[i] + 1, B[i] + 1) + D[i]);
        ans = std::min(ans, left.fold(A[i], W) + right.fold(0, B[i] + 1) + D[i]);
    }
    if (ans == INF) {
        std::cout << -1 << '\n';
    }
    else {
        std::cout << ans << '\n';
    }
    return 0;
}

Subtask #1
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct

Subtask #2
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 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 336 KB Output is correct

Subtask #3
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 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 336 KB Output is correct
15 Correct 1 ms 204 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 3 ms 332 KB Output is correct
20 Correct 2 ms 332 KB Output is correct
21 Correct 1 ms 336 KB Output is correct
22 Correct 2 ms 332 KB Output is correct
23 Correct 2 ms 332 KB Output is correct
24 Correct 2 ms 332 KB Output is correct

Subtask #4
49.0 / 49.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 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 336 KB Output is correct
15 Correct 1 ms 204 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 3 ms 332 KB Output is correct
20 Correct 2 ms 332 KB Output is correct
21 Correct 1 ms 336 KB Output is correct
22 Correct 2 ms 332 KB Output is correct
23 Correct 2 ms 332 KB Output is correct
24 Correct 2 ms 332 KB Output is correct
25 Correct 17 ms 1104 KB Output is correct
26 Correct 41 ms 2668 KB Output is correct
27 Correct 142 ms 5308 KB Output is correct
28 Correct 116 ms 3048 KB Output is correct
29 Correct 85 ms 4468 KB Output is correct
30 Correct 144 ms 3616 KB Output is correct
31 Correct 185 ms 8328 KB Output is correct
32 Correct 173 ms 6828 KB Output is correct
33 Correct 24 ms 2660 KB Output is correct
34 Correct 86 ms 6348 KB Output is correct
35 Correct 123 ms 12320 KB Output is correct
36 Correct 202 ms 12356 KB Output is correct
37 Correct 176 ms 12436 KB Output is correct
38 Correct 190 ms 12348 KB Output is correct