oj.uz

Submission #894067

# Submission time Handle Problem Language Result Execution time Memory
894067 2023-12-27T23:40:47 Z box Bitaro, who Leaps through Time (JOI19_timeleap) C++17
0 / 100
 709 ms 524288 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--;
    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
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 1 ms 348 KB Output is correct
5 Correct 0 ms 456 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 344 KB Output is correct
11 Correct 1 ms 856 KB Output is correct
12 Correct 1 ms 604 KB Output is correct
13 Correct 1 ms 600 KB Output is correct
14 Correct 1 ms 600 KB Output is correct
15 Correct 1 ms 688 KB Output is correct
16 Correct 1 ms 604 KB Output is correct
17 Correct 1 ms 604 KB Output is correct
18 Correct 2 ms 604 KB Output is correct
19 Correct 1 ms 604 KB Output is correct
20 Correct 1 ms 604 KB Output is correct
21 Correct 1 ms 604 KB Output is correct
22 Correct 1 ms 604 KB Output is correct
23 Correct 1 ms 604 KB Output is correct
24 Correct 1 ms 604 KB Output is correct
25 Correct 1 ms 668 KB Output is correct
26 Correct 1 ms 604 KB Output is correct
27 Correct 1 ms 600 KB Output is correct
28 Correct 1 ms 600 KB Output is correct
29 Correct 1 ms 856 KB Output is correct
30 Correct 2 ms 860 KB Output is correct
31 Correct 1 ms 600 KB Output is correct
32 Correct 1 ms 604 KB Output is correct
33 Correct 1 ms 604 KB Output is correct
34 Correct 1 ms 664 KB Output is correct
35 Correct 1 ms 856 KB Output is correct
36 Correct 1 ms 604 KB Output is correct
37 Correct 1 ms 668 KB Output is correct
38 Correct 2 ms 600 KB Output is correct
39 Correct 1 ms 600 KB Output is correct
40 Correct 1 ms 604 KB Output is correct
41 Runtime error 426 ms 524288 KB Execution killed with signal 9
42 Halted 0 ms 0 KB -

Subtask #2
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 666 ms 70856 KB Output is correct
2 Correct 597 ms 68384 KB Output is correct
3 Correct 649 ms 69200 KB Output is correct
4 Correct 659 ms 67160 KB Output is correct
5 Correct 621 ms 71508 KB Output is correct
6 Correct 613 ms 70312 KB Output is correct
7 Correct 657 ms 72328 KB Output is correct
8 Correct 657 ms 75328 KB Output is correct
9 Correct 632 ms 67868 KB Output is correct
10 Correct 709 ms 72140 KB Output is correct
11 Correct 637 ms 71616 KB Output is correct
12 Correct 655 ms 76128 KB Output is correct
13 Correct 671 ms 77140 KB Output is correct
14 Runtime error 376 ms 524288 KB Execution killed with signal 9
15 Halted 0 ms 0 KB -

Subtask #3
0 / 66.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 1 ms 348 KB Output is correct
5 Correct 0 ms 456 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 344 KB Output is correct
11 Correct 1 ms 856 KB Output is correct
12 Correct 1 ms 604 KB Output is correct
13 Correct 1 ms 600 KB Output is correct
14 Correct 1 ms 600 KB Output is correct
15 Correct 1 ms 688 KB Output is correct
16 Correct 1 ms 604 KB Output is correct
17 Correct 1 ms 604 KB Output is correct
18 Correct 2 ms 604 KB Output is correct
19 Correct 1 ms 604 KB Output is correct
20 Correct 1 ms 604 KB Output is correct
21 Correct 1 ms 604 KB Output is correct
22 Correct 1 ms 604 KB Output is correct
23 Correct 1 ms 604 KB Output is correct
24 Correct 1 ms 604 KB Output is correct
25 Correct 1 ms 668 KB Output is correct
26 Correct 1 ms 604 KB Output is correct
27 Correct 1 ms 600 KB Output is correct
28 Correct 1 ms 600 KB Output is correct
29 Correct 1 ms 856 KB Output is correct
30 Correct 2 ms 860 KB Output is correct
31 Correct 1 ms 600 KB Output is correct
32 Correct 1 ms 604 KB Output is correct
33 Correct 1 ms 604 KB Output is correct
34 Correct 1 ms 664 KB Output is correct
35 Correct 1 ms 856 KB Output is correct
36 Correct 1 ms 604 KB Output is correct
37 Correct 1 ms 668 KB Output is correct
38 Correct 2 ms 600 KB Output is correct
39 Correct 1 ms 600 KB Output is correct
40 Correct 1 ms 604 KB Output is correct
41 Runtime error 426 ms 524288 KB Execution killed with signal 9
42 Halted 0 ms 0 KB -