oj.uz

Submission #752570

# Submission time Handle Problem Language Result Execution time Memory
752570 2023-06-03T08:36:27 Z adrilen Wall (IOI14_wall) C++17
100 / 100
 649 ms 72784 KB 
#include "wall.h"
#include<bits/stdc++.h>
using namespace std;
using ll = long long;
typedef pair<int, int> pii;
constexpr int maxn = 2e6 + 5, bit = 32 - __builtin_clz(maxn), siz = 1 << bit, max_val = 1e9;

const array<int, 2> defa = {0, max_val};

array<int, 2> segtree[siz * 2] = { 0 };

void comp(array<int, 2> &lower, const array<int,2>&over)
{
    if (over[1] < lower[0])
    {
        lower[0] = lower[1] = over[1];
    } else if (over[0] > lower[1])
    {
        lower[0] = lower[1] = over[0];
    } else if (lower[0] <= over[0] && over[1] <= lower[1]) {
        lower = over;
    } else {
        lower[0] = max(lower[0], over[0]);
        lower[1] = min(lower[1], over[1]);
    }
}

void propogate(int p)
{
    comp(segtree[p * 2], segtree[p]);
    comp(segtree[p * 2 + 1], segtree[p]);
    segtree[p] = defa;
}

void update(int pos, int l, int r, int gl, int gr, array<int, 2> p)
{
    if (gl > r || l > gr) return ;

    // Inside
    if (gl <= l && r <= gr)
    {
        comp(segtree[pos], p);
        return ;
    }

    propogate(pos);
    int mid = (l + r) >> 1;
    update(pos * 2, l, mid, gl, gr, p);
    update(pos * 2 + 1, mid + 1, r, gl, gr, p);
}

int output[maxn] = { 0 };

void fnd_answers(int pos, int l, int r, int gl, int gr)
{
    if (l > gr || gl > r) return ;

    if (segtree[pos][0] == segtree[pos][1])
    {
        for (int i = l; i <= r; i++) output[i] = segtree[pos][0];
        // cout << "finished: " <<l  << " " << r << "\n";
        return ;
    }

    propogate(pos);
    int mid = (l + r) >> 1;
    fnd_answers(pos * 2, l, mid, gl, gr);
    fnd_answers(pos * 2 + 1, mid + 1, r, gl, gr);
}

void buildWall(int n, int k, int op[], int left[], int right[], int height[], int finalHeight[]){
    for (int i = 0; i < siz; i++) segtree[i][1] = max_val;

    array<int, 2> p;
    for (int i = 0; i < k; i++)
    {
        // Min
        if (op[i] == 1) p[0] = height[i], p[1] = max_val;
        // Max
        else p[0] = 0, p[1] = height[i];
        update(1, 0, siz - 1, left[i], right[i], p);

        // cout << i << "\n";
        // for (int i = 1; i < 2 * siz; i++)
        // {
        //     if (__builtin_popcount(i) == 1) cout << "\n";
        //     cout << segtree[i][0] << " " << segtree[i][1] << "\t";
        // }
        // cout << endl << endl;
    }

    fnd_answers(1, 0, siz - 1, 0, n - 1);
    for (int i = 0; i < n; i++) finalHeight[i] = output[i];
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 16724 KB Output is correct
2 Correct 10 ms 16832 KB Output is correct
3 Correct 11 ms 16724 KB Output is correct
4 Correct 13 ms 17048 KB Output is correct
5 Correct 12 ms 17108 KB Output is correct
6 Correct 12 ms 17064 KB Output is correct

Subtask #2
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 16724 KB Output is correct
2 Correct 239 ms 30288 KB Output is correct
3 Correct 217 ms 24040 KB Output is correct
4 Correct 521 ms 35848 KB Output is correct
5 Correct 325 ms 36968 KB Output is correct
6 Correct 293 ms 35416 KB Output is correct

Subtask #3
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 16724 KB Output is correct
2 Correct 9 ms 16824 KB Output is correct
3 Correct 8 ms 16704 KB Output is correct
4 Correct 13 ms 17056 KB Output is correct
5 Correct 12 ms 17020 KB Output is correct
6 Correct 12 ms 17108 KB Output is correct
7 Correct 7 ms 16724 KB Output is correct
8 Correct 239 ms 30376 KB Output is correct
9 Correct 203 ms 24012 KB Output is correct
10 Correct 519 ms 35980 KB Output is correct
11 Correct 308 ms 36916 KB Output is correct
12 Correct 295 ms 35348 KB Output is correct
13 Correct 10 ms 16624 KB Output is correct
14 Correct 294 ms 30372 KB Output is correct
15 Correct 39 ms 18036 KB Output is correct
16 Correct 567 ms 36120 KB Output is correct
17 Correct 315 ms 35596 KB Output is correct
18 Correct 309 ms 35528 KB Output is correct

Subtask #4
39.0 / 39.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 16732 KB Output is correct
2 Correct 8 ms 16852 KB Output is correct
3 Correct 8 ms 16724 KB Output is correct
4 Correct 15 ms 17008 KB Output is correct
5 Correct 12 ms 17104 KB Output is correct
6 Correct 14 ms 17084 KB Output is correct
7 Correct 8 ms 16648 KB Output is correct
8 Correct 236 ms 30272 KB Output is correct
9 Correct 196 ms 24248 KB Output is correct
10 Correct 521 ms 35856 KB Output is correct
11 Correct 315 ms 36920 KB Output is correct
12 Correct 305 ms 35348 KB Output is correct
13 Correct 7 ms 16688 KB Output is correct
14 Correct 243 ms 30400 KB Output is correct
15 Correct 38 ms 18052 KB Output is correct
16 Correct 562 ms 36100 KB Output is correct
17 Correct 303 ms 35492 KB Output is correct
18 Correct 321 ms 35576 KB Output is correct
19 Correct 631 ms 72668 KB Output is correct
20 Correct 628 ms 70132 KB Output is correct
21 Correct 626 ms 72784 KB Output is correct
22 Correct 635 ms 70260 KB Output is correct
23 Correct 640 ms 70072 KB Output is correct
24 Correct 631 ms 70100 KB Output is correct
25 Correct 623 ms 70296 KB Output is correct
26 Correct 617 ms 72704 KB Output is correct
27 Correct 627 ms 72688 KB Output is correct
28 Correct 629 ms 70040 KB Output is correct
29 Correct 622 ms 70088 KB Output is correct
30 Correct 649 ms 70064 KB Output is correct