oj.uz

답안 #668926

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
668926 2022-12-05T08:14:58 Z stevancv Pinball (JOI14_pinball) C++14
100 / 100
 359 ms 31948 KB 
#include <bits/stdc++.h>
#define ll long long
#define ld long double
#define sp ' '
#define en '\n'
#define smin(a, b) a = min(a, b)
#define smax(a, b) a = max(a, b)
using namespace std;
const int N = 1e5 + 2;
const ll linf = 1e18;
struct Segtree {
    ll st[12 * N];
    void Reset() {
        for (int i = 1; i < 12 * N; i++) st[i] = linf;
    }
    void Update(int node, int l, int r, int x, ll y) {
        smin(st[node], y);
        if (l == r) return;
        int mid = l + r >> 1;
        if (x <= mid) Update(2 * node, l, mid, x, y);
        else Update(2 * node + 1, mid + 1, r, x, y);
    }
    ll Get(int node, int l, int r, int ql, int qr) {
        if (r < ql || qr < l) return linf;
        if (ql <= l && r <= qr) return st[node];
        int mid = l + r >> 1;
        return min(Get(2 * node, l, mid, ql, qr), Get(2 * node + 1, mid + 1, r, ql, qr));
    }
}st;
int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    int n, m;
    cin >> n >> m;
    vector<int> a(n), b(n), c(n), d(n);
    vector<int> all;
    all.push_back(1); all.push_back(m);
    for (int i = 0; i < n; i++) {
        cin >> a[i] >> b[i] >> c[i] >> d[i];
        all.push_back(a[i]);
        all.push_back(b[i]);
        all.push_back(c[i]);
    }
    sort(all.begin(), all.end());
    all.erase(unique(all.begin(), all.end()), all.end());
    int sz = all.size();
    map<int, int> mp;
    for (int i = 0; i < all.size(); i++) mp[all[i]] = i;
    for (int i = 0; i < n; i++) {
        a[i] = mp[a[i]];
        b[i] = mp[b[i]];
        c[i] = mp[c[i]];
    }
    vector<ll> dp1(n, linf), dp2(n, linf);
    st.Reset();
    for (int i = 0; i < n; i++) {
        if (a[i] == 0) dp1[i] = d[i];
        else smin(dp1[i], st.Get(1, 0, sz - 1, a[i], b[i]) + d[i]);
        st.Update(1, 0, sz - 1, c[i], dp1[i]);
    }
    st.Reset();
    for (int i = 0; i < n; i++) {
        if (b[i] == sz - 1) dp2[i] = d[i];
        else smin(dp2[i], st.Get(1, 0, sz - 1, a[i], b[i]) + d[i]);
        st.Update(1, 0, sz - 1, c[i], dp2[i]);
    }
    ll ans = linf;
    for (int i = 0; i < n; i++) smin(ans, dp1[i] + dp2[i] - d[i]);
    if (ans == linf) ans = -1;
    cout << ans << en;
    return 0;
}

Compilation message

pinball.cpp: In member function 'void Segtree::Update(int, int, int, int, long long int)':
pinball.cpp:19:21: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   19 |         int mid = l + r >> 1;
      |                   ~~^~~
pinball.cpp: In member function 'long long int Segtree::Get(int, int, int, int, int)':
pinball.cpp:26:21: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   26 |         int mid = l + r >> 1;
      |                   ~~^~~
pinball.cpp: In function 'int main()':
pinball.cpp:49:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   49 |     for (int i = 0; i < all.size(); i++) mp[all[i]] = i;
      |                     ~~^~~~~~~~~~~~

Subtask #1
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 7 ms 9684 KB Output is correct
3 Correct 6 ms 9684 KB Output is correct
4 Correct 5 ms 9688 KB Output is correct
5 Correct 5 ms 9596 KB Output is correct
6 Correct 5 ms 9684 KB Output is correct
7 Correct 7 ms 9684 KB Output is correct
8 Correct 6 ms 9684 KB Output is correct

Subtask #2
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 7 ms 9684 KB Output is correct
3 Correct 6 ms 9684 KB Output is correct
4 Correct 5 ms 9688 KB Output is correct
5 Correct 5 ms 9596 KB Output is correct
6 Correct 5 ms 9684 KB Output is correct
7 Correct 7 ms 9684 KB Output is correct
8 Correct 6 ms 9684 KB Output is correct
9 Correct 6 ms 9628 KB Output is correct
10 Correct 6 ms 9684 KB Output is correct
11 Correct 5 ms 9672 KB Output is correct
12 Correct 6 ms 9672 KB Output is correct
13 Correct 6 ms 9684 KB Output is correct
14 Correct 6 ms 9764 KB Output is correct

Subtask #3
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 7 ms 9684 KB Output is correct
3 Correct 6 ms 9684 KB Output is correct
4 Correct 5 ms 9688 KB Output is correct
5 Correct 5 ms 9596 KB Output is correct
6 Correct 5 ms 9684 KB Output is correct
7 Correct 7 ms 9684 KB Output is correct
8 Correct 6 ms 9684 KB Output is correct
9 Correct 6 ms 9628 KB Output is correct
10 Correct 6 ms 9684 KB Output is correct
11 Correct 5 ms 9672 KB Output is correct
12 Correct 6 ms 9672 KB Output is correct
13 Correct 6 ms 9684 KB Output is correct
14 Correct 6 ms 9764 KB Output is correct
15 Correct 5 ms 9684 KB Output is correct
16 Correct 6 ms 9684 KB Output is correct
17 Correct 7 ms 9812 KB Output is correct
18 Correct 6 ms 9684 KB Output is correct
19 Correct 7 ms 9812 KB Output is correct
20 Correct 8 ms 9736 KB Output is correct
21 Correct 9 ms 9812 KB Output is correct
22 Correct 7 ms 9940 KB Output is correct
23 Correct 7 ms 9860 KB Output is correct
24 Correct 7 ms 9960 KB Output is correct

Subtask #4
49.0 / 49.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 7 ms 9684 KB Output is correct
3 Correct 6 ms 9684 KB Output is correct
4 Correct 5 ms 9688 KB Output is correct
5 Correct 5 ms 9596 KB Output is correct
6 Correct 5 ms 9684 KB Output is correct
7 Correct 7 ms 9684 KB Output is correct
8 Correct 6 ms 9684 KB Output is correct
9 Correct 6 ms 9628 KB Output is correct
10 Correct 6 ms 9684 KB Output is correct
11 Correct 5 ms 9672 KB Output is correct
12 Correct 6 ms 9672 KB Output is correct
13 Correct 6 ms 9684 KB Output is correct
14 Correct 6 ms 9764 KB Output is correct
15 Correct 5 ms 9684 KB Output is correct
16 Correct 6 ms 9684 KB Output is correct
17 Correct 7 ms 9812 KB Output is correct
18 Correct 6 ms 9684 KB Output is correct
19 Correct 7 ms 9812 KB Output is correct
20 Correct 8 ms 9736 KB Output is correct
21 Correct 9 ms 9812 KB Output is correct
22 Correct 7 ms 9940 KB Output is correct
23 Correct 7 ms 9860 KB Output is correct
24 Correct 7 ms 9960 KB Output is correct
25 Correct 24 ms 11220 KB Output is correct
26 Correct 65 ms 14276 KB Output is correct
27 Correct 173 ms 20024 KB Output is correct
28 Correct 127 ms 17832 KB Output is correct
29 Correct 124 ms 17992 KB Output is correct
30 Correct 166 ms 18684 KB Output is correct
31 Correct 278 ms 25720 KB Output is correct
32 Correct 249 ms 23508 KB Output is correct
33 Correct 41 ms 13908 KB Output is correct
34 Correct 149 ms 20808 KB Output is correct
35 Correct 199 ms 31948 KB Output is correct
36 Correct 359 ms 31940 KB Output is correct
37 Correct 298 ms 31904 KB Output is correct
38 Correct 285 ms 31888 KB Output is correct