oj.uz

Submission #804459

# Submission time Handle Problem Language Result Execution time Memory
804459 2023-08-03T08:51:17 Z jakobrs Wall (IOI14_wall) C++17
100 / 100
 619 ms 59240 KB 
#include <vector>
#include <iostream>

int clamp(int low, int high, int x) {
    if (x < low) return low;
    if (x > high) return high;
    return x;
}

struct Req {
    int min = 0;
    int max = 2'000'000'000;

    Req operator*(Req rhs) const {
        return {
            .min = clamp(min, max, rhs.min),
            .max = clamp(min, max, rhs.max),
        };
    }
};

struct SegmentTree {
    std::vector<Req> values;
    int offset;

    explicit SegmentTree(int o) : values(2 * o, {0, 0}), offset(o) {}

    void push(int v) {
        values[2 * v] = values[v] * values[2 * v];
        values[2 * v + 1] = values[v] * values[2 * v + 1];
        values[v] = Req{};
    }

    void update(int l, int r, Req upd) { update(l, r, upd, 1, 0, offset); }

    void update(int l, int r, Req upd, int v, int s, int e) {
        if (e <= l || r <= s) {
            return;
        } else if (l <= s && e <= r) {
            values[v] = upd * values[v];
        } else {
            int m = (s + e) / 2;
            push(v);
            update(l, r, upd, 2 * v, s, m);
            update(l, r, upd, 2 * v + 1, m, e);
            values[v] = Req{};
        }
    }

    void canonicalise() {
        for (int i = 1; i < offset; i++) push(i);
    }
};

void buildWall(int n, int k, int op[], int left[], int right[], int height[],
               int finalHeight[]) {
    int o = 1;
    while (o < n) o *= 2;
    SegmentTree st(o);

    for (int i = 0; i < k; i++) {
        int l = left[i];
        int r = right[i] + 1;

        Req upd;
        if (op[i] == 1) upd.min = height[i];
        if (op[i] == 2) upd.max = height[i];

        st.update(l, r, upd);
    }

    st.canonicalise();
    for (int i = 0; i < n; i++) finalHeight[i] = st.values[i + o].min;
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 2 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 5 ms 724 KB Output is correct
5 Correct 4 ms 724 KB Output is correct
6 Correct 4 ms 712 KB Output is correct

Subtask #2
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 108 ms 13952 KB Output is correct
3 Correct 152 ms 7912 KB Output is correct
4 Correct 374 ms 20196 KB Output is correct
5 Correct 230 ms 20632 KB Output is correct
6 Correct 229 ms 19096 KB Output is correct

Subtask #3
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 2 ms 436 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 5 ms 724 KB Output is correct
5 Correct 4 ms 724 KB Output is correct
6 Correct 4 ms 724 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 109 ms 13852 KB Output is correct
9 Correct 153 ms 7920 KB Output is correct
10 Correct 366 ms 20172 KB Output is correct
11 Correct 230 ms 20684 KB Output is correct
12 Correct 231 ms 19328 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 111 ms 13892 KB Output is correct
15 Correct 25 ms 1896 KB Output is correct
16 Correct 462 ms 20208 KB Output is correct
17 Correct 255 ms 19516 KB Output is correct
18 Correct 231 ms 19616 KB Output is correct

Subtask #4
39.0 / 39.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 300 KB Output is correct
2 Correct 2 ms 440 KB Output is correct
3 Correct 1 ms 320 KB Output is correct
4 Correct 5 ms 724 KB Output is correct
5 Correct 4 ms 700 KB Output is correct
6 Correct 4 ms 696 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 108 ms 13944 KB Output is correct
9 Correct 151 ms 7920 KB Output is correct
10 Correct 384 ms 20200 KB Output is correct
11 Correct 232 ms 20656 KB Output is correct
12 Correct 230 ms 19212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 111 ms 13868 KB Output is correct
15 Correct 31 ms 1876 KB Output is correct
16 Correct 459 ms 20196 KB Output is correct
17 Correct 229 ms 19544 KB Output is correct
18 Correct 230 ms 19620 KB Output is correct
19 Correct 520 ms 59164 KB Output is correct
20 Correct 535 ms 59228 KB Output is correct
21 Correct 535 ms 59228 KB Output is correct
22 Correct 524 ms 59228 KB Output is correct
23 Correct 528 ms 59240 KB Output is correct
24 Correct 517 ms 59212 KB Output is correct
25 Correct 548 ms 59232 KB Output is correct
26 Correct 548 ms 59224 KB Output is correct
27 Correct 534 ms 59232 KB Output is correct
28 Correct 619 ms 59228 KB Output is correct
29 Correct 521 ms 59236 KB Output is correct
30 Correct 556 ms 59228 KB Output is correct