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답안 #314105

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
314105 2020-10-18T11:17:33 Z apostoldaniel854 Pinball (JOI14_pinball) C++14
100 / 100
 678 ms 38776 KB 
#include <bits/stdc++.h>

using namespace std;

using ll = long long;

struct SegMin {
    vector <ll> seg;
    int n;
    SegMin (int _n) {
        n = _n;
        seg.resize (n * 4 + 4, (1ll << 60));
    }
    void updatePos (int node, int lb, int rb, int pos, ll val) {
        if (lb == rb) {
            seg[node] = min (seg[node], val);
            return;
        }
        int mid = (lb + rb) / 2;
        if (pos <= mid)
            updatePos (node * 2, lb, mid, pos, val);
        else
            updatePos (node * 2 + 1, mid + 1, rb, pos, val);
        seg[node] = min (seg[node * 2], seg[node * 2 + 1]);
    }
    ll queryRange (int node, int lb, int rb, int lQ, int rQ) {
        if (lQ <= lb && rb <= rQ)
            return seg[node];
        int mid = (lb + rb) / 2;
        ll ans = (1ll << 60);
        if (mid >= lQ)
            ans = min (ans, queryRange (node * 2, lb, mid, lQ, rQ));
        if (mid < rQ)
            ans = min (ans, queryRange (node * 2 + 1, mid + 1, rb, lQ, rQ));
        return ans;
    }
};
const int N = 1e5;
int a[1 + N], b[1 + N], c[1 + N], d[1 + N];

#define dbg(x) cerr << #x << " " << x << "\n"

int main () {
    ios::sync_with_stdio (false);
    cin.tie (0); cout.tie (0);

    int m, n;
    cin >> m >> n;
    map <int, int> mp;
    mp[1]; mp[n];
    for (int i = 1; i <= m; i++) {
        cin >> a[i] >> b[i] >> c[i] >> d[i];
        mp[a[i]]; mp[b[i]]; mp[c[i]];
    }
    int nr = 0;
    for (auto &x : mp)
        x.second = ++nr;
    for (int i = 1; i <= m; i++) {
        a[i] = mp[a[i]]; b[i] = mp[b[i]]; c[i] = mp[c[i]];
    }

    SegMin pref (nr), suff (nr);
    pref.updatePos (1, 1, nr, 1, 0);
    suff.updatePos (1, 1, nr, nr, 0);
   /// dbg (nr);
    ll ans = (1ll << 60);
    for (int i = 1; i <= m; i++) {
       /// dbg (i);
       /// dbg (a[i]); dbg (b[i]); dbg (c[i]);
        ll bestL = pref.queryRange (1, 1, nr, a[i], b[i]);
        ll bestR = suff.queryRange (1, 1, nr, a[i], b[i]);
        ans = min (ans, bestL + bestR + d[i]);
        pref.updatePos (1, 1, nr, c[i], bestL + d[i]);
        suff.updatePos (1, 1, nr, c[i], bestR + d[i]);
    }
    if (ans == (1ll << 60))
        ans = -1;
    cout << ans << "\n";
    return 0;
}

Subtask #1
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct

Subtask #2
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct

Subtask #3
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 2 ms 512 KB Output is correct
18 Correct 2 ms 384 KB Output is correct
19 Correct 3 ms 640 KB Output is correct
20 Correct 2 ms 512 KB Output is correct
21 Correct 2 ms 512 KB Output is correct
22 Correct 3 ms 768 KB Output is correct
23 Correct 2 ms 768 KB Output is correct
24 Correct 3 ms 768 KB Output is correct

Subtask #4
49.0 / 49.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 2 ms 512 KB Output is correct
18 Correct 2 ms 384 KB Output is correct
19 Correct 3 ms 640 KB Output is correct
20 Correct 2 ms 512 KB Output is correct
21 Correct 2 ms 512 KB Output is correct
22 Correct 3 ms 768 KB Output is correct
23 Correct 2 ms 768 KB Output is correct
24 Correct 3 ms 768 KB Output is correct
25 Correct 26 ms 2688 KB Output is correct
26 Correct 88 ms 7800 KB Output is correct
27 Correct 292 ms 15228 KB Output is correct
28 Correct 159 ms 5880 KB Output is correct
29 Correct 199 ms 13176 KB Output is correct
30 Correct 238 ms 7800 KB Output is correct
31 Correct 532 ms 24312 KB Output is correct
32 Correct 436 ms 19064 KB Output is correct
33 Correct 49 ms 7800 KB Output is correct
34 Correct 242 ms 19448 KB Output is correct
35 Correct 276 ms 38648 KB Output is correct
36 Correct 678 ms 38648 KB Output is correct
37 Correct 526 ms 38776 KB Output is correct
38 Correct 474 ms 38648 KB Output is correct