oj.uz

답안 #894068

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
894068 2023-12-27T23:43:44 Z box Bitaro, who Leaps through Time (JOI19_timeleap) C++17
100 / 100
 701 ms 73808 KB 
#include <bits/stdc++.h>
using namespace std;

#define ar array
#define sz(v) int(std::size(v))
using i64 = long long;

int N, Q;

struct info {
    // z = -1 => intersection between all intervals is positive, stored in [x, y]
    // z >= 0 => z stores cost, x is maximum starting point, y is minimum ending point (under minimum cost)
    int x, y;
    i64 z;
    void pr() const {
        cout << "{x=" << x << ", y=" << y << ", z=" << z << "}";
    }
};
info operator+(const info one, const info two) {
    if (~one.z && ~two.z) return {one.x, two.y, one.z + two.z + max(0, one.y - two.x)};
    if (~one.z) return {one.x, one.y < two.x ? two.x : min(one.y, two.y), one.z + max(0, one.y - two.y)};
    if (~two.z) return {two.x > one.y ? one.y : max(one.x, two.x), two.y, two.z + max(0, one.x - two.x)};
    // cout << "\t merging "; one.pr(); cout << " and "; two.pr(); cout << '\n';
    // cout << "last case" << endl;
    if (max(one.x, two.x) <= min(one.y, two.y)) return {max(one.x, two.x), min(one.y, two.y), -1};
    return one.y < two.x ? info{one.y, two.x, 0} : info{one.x, two.y, one.x - two.y};
}

struct segt {
    int l, r;
    segt *lc = NULL, *rc = NULL;
    info x;
    segt(int l, int r) : l(l), r(r) {
        if (l == r) x = info{-1, -1, -1};
        else {
            int m = (l + r) / 2;
            lc = new segt(l, m), rc = new segt(m + 1, r);
            x = lc->x + rc->x;
        }
    }
    void upd(int i, int ql, int qr) {
        if (l == r) x = {ql - l, qr - l - 1, -1};
        else {
            i <= lc->r ? lc->upd(i, ql, qr) : rc->upd(i, ql, qr);
            x = lc->x + rc->x;
        }
        // cout << "GOT " << l << ' ' << r << ": ";
        // x.pr();
        // cout << '\n';
    }
    info qry(int ql, int qr) {
        if (ql <= l && qr >= r) return x;
        if (qr <= lc->r) return lc->qry(ql, qr);
        if (ql >= rc->l) return rc->qry(ql, qr);
        return lc->qry(ql, qr) + rc->qry(ql, qr);
    }
} *tree, *tree_rev;

void upd(int i, int l, int r) {
    tree->upd(i, l, r);
    tree_rev->upd(N - i - 1, l, r);
}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cin >> N >> Q, N--;
    if (!N) {
        while (Q--) {
            int t;
            cin >> t;
            assert(t == 2);
            int i, t1, j, t2;
            cin >> i >> t1 >> j >> t2, i--, j--;
            assert(i == j);
            cout << max(0, t1 - t2) << '\n';
        }
        return 0;
    }
    tree = new segt(0, N - 1);
    tree_rev = new segt(0, N - 1);
    for (int i = 0; i < N; i++) {
        int l, r;
        cin >> l >> r;
        upd(i, l, r);
    }
    while (Q--) {
        int t;
        cin >> t;
        if (t == 1) {
            int i, l, r;
            cin >> i >> l >> r, i--;
            upd(i, l, r);
        } else {
            int i, t1, j, t2;
            cin >> i >> t1 >> j >> t2, i--, j--;
            if (i == j)
                cout << max(0, t1 - t2) << '\n';
            else if (i < j) {
                info one{t1 - i, t1 - i, -1}, two{t2 - j, t2 - j, -1};
                // info mid{tree->qry(i, j - 1)};
                // cout << "one: "; one.pr(); cout << '\n';
                // cout << "two: "; two.pr(); cout << '\n';
                // cout << "mid: "; mid.pr(); cout << '\n';
                // cout << "one+mid: "; (one+mid).pr(); cout << '\n';
                cout << max(i64(0), (one + tree->qry(i, j - 1) + two).z) << '\n';
            } else {
                i = N - i;
                j = N - j;
                info one{t1 - i, t1 - i, -1}, two{t2 - j, t2 - j, -1};
                cout << max(i64(0), (one + tree_rev->qry(i, j - 1) + two).z) << '\n';
            }
        }
    }
}

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 2 ms 604 KB Output is correct
13 Correct 1 ms 604 KB Output is correct
14 Correct 2 ms 604 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 1 ms 604 KB Output is correct
17 Correct 2 ms 604 KB Output is correct
18 Correct 1 ms 604 KB Output is correct
19 Correct 2 ms 860 KB Output is correct
20 Correct 1 ms 604 KB Output is correct
21 Correct 1 ms 472 KB Output is correct
22 Correct 1 ms 604 KB Output is correct
23 Correct 1 ms 464 KB Output is correct
24 Correct 1 ms 604 KB Output is correct
25 Correct 1 ms 604 KB Output is correct
26 Correct 1 ms 604 KB Output is correct
27 Correct 1 ms 604 KB Output is correct
28 Correct 1 ms 604 KB Output is correct
29 Correct 1 ms 604 KB Output is correct
30 Correct 1 ms 856 KB Output is correct
31 Correct 1 ms 604 KB Output is correct
32 Correct 2 ms 608 KB Output is correct
33 Correct 1 ms 604 KB Output is correct
34 Correct 1 ms 604 KB Output is correct
35 Correct 1 ms 600 KB Output is correct
36 Correct 1 ms 604 KB Output is correct
37 Correct 1 ms 464 KB Output is correct
38 Correct 2 ms 604 KB Output is correct
39 Correct 1 ms 604 KB Output is correct
40 Correct 1 ms 600 KB Output is correct
41 Correct 0 ms 348 KB Output is correct

Subtask #2
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 680 ms 64516 KB Output is correct
2 Correct 650 ms 61052 KB Output is correct
3 Correct 649 ms 61644 KB Output is correct
4 Correct 645 ms 60044 KB Output is correct
5 Correct 650 ms 63976 KB Output is correct
6 Correct 638 ms 62884 KB Output is correct
7 Correct 660 ms 64848 KB Output is correct
8 Correct 673 ms 67428 KB Output is correct
9 Correct 663 ms 60468 KB Output is correct
10 Correct 684 ms 64448 KB Output is correct
11 Correct 648 ms 64008 KB Output is correct
12 Correct 695 ms 68164 KB Output is correct
13 Correct 671 ms 69096 KB Output is correct
14 Correct 1 ms 344 KB Output is correct

Subtask #3
66.0 / 66.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 2 ms 604 KB Output is correct
13 Correct 1 ms 604 KB Output is correct
14 Correct 2 ms 604 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 1 ms 604 KB Output is correct
17 Correct 2 ms 604 KB Output is correct
18 Correct 1 ms 604 KB Output is correct
19 Correct 2 ms 860 KB Output is correct
20 Correct 1 ms 604 KB Output is correct
21 Correct 1 ms 472 KB Output is correct
22 Correct 1 ms 604 KB Output is correct
23 Correct 1 ms 464 KB Output is correct
24 Correct 1 ms 604 KB Output is correct
25 Correct 1 ms 604 KB Output is correct
26 Correct 1 ms 604 KB Output is correct
27 Correct 1 ms 604 KB Output is correct
28 Correct 1 ms 604 KB Output is correct
29 Correct 1 ms 604 KB Output is correct
30 Correct 1 ms 856 KB Output is correct
31 Correct 1 ms 604 KB Output is correct
32 Correct 2 ms 608 KB Output is correct
33 Correct 1 ms 604 KB Output is correct
34 Correct 1 ms 604 KB Output is correct
35 Correct 1 ms 600 KB Output is correct
36 Correct 1 ms 604 KB Output is correct
37 Correct 1 ms 464 KB Output is correct
38 Correct 2 ms 604 KB Output is correct
39 Correct 1 ms 604 KB Output is correct
40 Correct 1 ms 600 KB Output is correct
41 Correct 0 ms 348 KB Output is correct
42 Correct 680 ms 64516 KB Output is correct
43 Correct 650 ms 61052 KB Output is correct
44 Correct 649 ms 61644 KB Output is correct
45 Correct 645 ms 60044 KB Output is correct
46 Correct 650 ms 63976 KB Output is correct
47 Correct 638 ms 62884 KB Output is correct
48 Correct 660 ms 64848 KB Output is correct
49 Correct 673 ms 67428 KB Output is correct
50 Correct 663 ms 60468 KB Output is correct
51 Correct 684 ms 64448 KB Output is correct
52 Correct 648 ms 64008 KB Output is correct
53 Correct 695 ms 68164 KB Output is correct
54 Correct 671 ms 69096 KB Output is correct
55 Correct 1 ms 344 KB Output is correct
56 Correct 638 ms 68012 KB Output is correct
57 Correct 617 ms 63932 KB Output is correct
58 Correct 650 ms 69580 KB Output is correct
59 Correct 648 ms 70140 KB Output is correct
60 Correct 612 ms 65612 KB Output is correct
61 Correct 685 ms 71932 KB Output is correct
62 Correct 701 ms 71732 KB Output is correct
63 Correct 657 ms 71472 KB Output is correct
64 Correct 686 ms 72052 KB Output is correct
65 Correct 674 ms 68792 KB Output is correct
66 Correct 671 ms 69160 KB Output is correct
67 Correct 641 ms 71700 KB Output is correct
68 Correct 609 ms 66116 KB Output is correct
69 Correct 668 ms 73424 KB Output is correct
70 Correct 638 ms 66168 KB Output is correct
71 Correct 613 ms 63568 KB Output is correct
72 Correct 639 ms 65908 KB Output is correct
73 Correct 694 ms 71796 KB Output is correct
74 Correct 657 ms 72020 KB Output is correct
75 Correct 659 ms 73116 KB Output is correct
76 Correct 645 ms 73808 KB Output is correct
77 Correct 0 ms 344 KB Output is correct