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답안 #819951

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
819951 2023-08-10T16:15:25 Z vjudge1 Pinball (JOI14_pinball) C++17
100 / 100
 441 ms 63184 KB 
#include <bits/stdc++.h>
using namespace std;

class segtree_t {
       public:
        segtree_t *left, *right;
        int l, r, m;
        int64_t val;

        segtree_t(int l, int r) : l(l), r(r), m(l + r >> 1), val(1e18) {
                if (l == r) return;
                left = new segtree_t(l, m);
                right = new segtree_t(m + 1, r);
        }

        void Update(int p, int64_t x) {
                if (l == r) {
                        val = min(val, x);
                        return;
                }
                if (p <= m) {
                        left->Update(p, x);
                } else {
                        right->Update(p, x);
                }
                val = min(left->val, right->val);
        }

        int64_t Get(int s, int t) {
                if (r < s or l > t) return 1e18;
                if (s <= l && r <= t) return val;
                return min(left->Get(s, t), right->Get(s, t));
        }
};

int32_t main() {
        ios_base::sync_with_stdio(0);
        cin.tie(0);
        int n, m;
        cin >> m >> n;
        vector<int> a(m), b(m), c(m), d(m);
        for (int i = 0; i < m; i++) cin >> a[i] >> b[i] >> c[i] >> d[i];
        vector<int> points({1, n});
        for (int i = 0; i < m; i++) points.emplace_back(a[i]);
        for (int i = 0; i < m; i++) points.emplace_back(b[i]);
        for (int i = 0; i < m; i++) points.emplace_back(c[i]);
        sort(points.begin(), points.end());
        points.resize(unique(points.begin(), points.end()) - points.begin());
        const int N = points.size();
        for (int i = 0; i < m; i++) a[i] = lower_bound(points.begin(), points.end(), a[i]) - points.begin() + 1;
        for (int i = 0; i < m; i++) b[i] = lower_bound(points.begin(), points.end(), b[i]) - points.begin() + 1;
        for (int i = 0; i < m; i++) c[i] = lower_bound(points.begin(), points.end(), c[i]) - points.begin() + 1;
        segtree_t *treeL = new segtree_t(1, N);
        segtree_t *treeR = new segtree_t(1, N);
        treeL->Update(1, 0);
        treeR->Update(N, 0);
        int64_t res = 1e18;
        for (int i = 0; i < m; i++) {
                int64_t x = treeL->Get(a[i], b[i]);
                int64_t y = treeR->Get(a[i], b[i]);
                treeL->Update(c[i], x + d[i]);
                treeR->Update(c[i], y + d[i]);
                res = min(res, x + y + d[i]);
        }
        cout << (res == 1e18 ? -1 : res);
}

Compilation message

pinball.cpp: In constructor 'segtree_t::segtree_t(int, int)':
pinball.cpp:10:51: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   10 |         segtree_t(int l, int r) : l(l), r(r), m(l + r >> 1), val(1e18) {
      |                                                 ~~^~~

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 0 ms 320 KB Output is correct
4 Correct 0 ms 320 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 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 0 ms 320 KB Output is correct
4 Correct 0 ms 320 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 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 340 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 0 ms 320 KB Output is correct
4 Correct 0 ms 320 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 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 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 468 KB Output is correct
17 Correct 2 ms 596 KB Output is correct
18 Correct 1 ms 328 KB Output is correct
19 Correct 2 ms 896 KB Output is correct
20 Correct 2 ms 468 KB Output is correct
21 Correct 1 ms 596 KB Output is correct
22 Correct 2 ms 852 KB Output is correct
23 Correct 2 ms 852 KB Output is correct
24 Correct 2 ms 844 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 0 ms 320 KB Output is correct
4 Correct 0 ms 320 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 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 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 468 KB Output is correct
17 Correct 2 ms 596 KB Output is correct
18 Correct 1 ms 328 KB Output is correct
19 Correct 2 ms 896 KB Output is correct
20 Correct 2 ms 468 KB Output is correct
21 Correct 1 ms 596 KB Output is correct
22 Correct 2 ms 852 KB Output is correct
23 Correct 2 ms 852 KB Output is correct
24 Correct 2 ms 844 KB Output is correct
25 Correct 18 ms 4048 KB Output is correct
26 Correct 58 ms 12276 KB Output is correct
27 Correct 201 ms 23712 KB Output is correct
28 Correct 110 ms 7880 KB Output is correct
29 Correct 166 ms 20764 KB Output is correct
30 Correct 166 ms 10288 KB Output is correct
31 Correct 369 ms 38340 KB Output is correct
32 Correct 324 ms 29488 KB Output is correct
33 Correct 33 ms 12496 KB Output is correct
34 Correct 192 ms 31748 KB Output is correct
35 Correct 192 ms 63056 KB Output is correct
36 Correct 441 ms 63184 KB Output is correct
37 Correct 329 ms 63180 KB Output is correct
38 Correct 307 ms 63172 KB Output is correct