oj.uz

Submission #103001

# Submission time Handle Problem Language Result Execution time Memory
103001 2019-03-28T12:49:02 Z alexpetrescu Wall (IOI14_wall) C++14
100 / 100
 818 ms 77136 KB 
#include "wall.h"
#include <algorithm>

#define MAXN 2000000
#define MAXP 4200000
#define INF 100000

int atLeast[MAXP], atMost[MAXP], ans[MAXN], left, right, h, tip;

inline void unu(int p, int h) {
    atLeast[p] = std::max(atLeast[p], h);
    atMost[p] = std::max(atMost[p], atLeast[p]);
}

inline void doi(int p, int h) {
    atMost[p] = std::min(atMost[p], h);
    atLeast[p] = std::min(atLeast[p], atMost[p]);
}

inline void propag(int p, int st, int dr) {
    unu(st, atLeast[p]);
    doi(st, atMost[p]);
    unu(dr, atLeast[p]);
    doi(dr, atMost[p]);
    atLeast[p] = 0;
    atMost[p] = INF;
}

void update(int p, int st, int dr) {
    if (left <= st && dr <= right) {
        if (tip == 1)
            unu(p, h);
        else
            doi(p, h);
    } else {
        propag(p, 2 * p, 2 * p + 1);
        int m = (st + dr) / 2;
        if (left <= m) update(2 * p, st, m);
        if (m < right) update(2 * p + 1, m + 1, dr);
    }
}

void dfs(int p, int st, int dr) {
    if (st == dr)
        ans[st] = atLeast[p];
    else {
        propag(p, 2 * p, 2 * p + 1);
        int m = (st + dr) / 2;
        dfs(2 * p, st, m);
        dfs(2 * p + 1, m + 1, dr);
    }
}

void buildWall(int n, int k, int op[], int left0[], int right0[], int height[], int finalHeight[]) {
    for (int i = 0; i < k; i++) {
        tip = op[i];
        left = left0[i];
        right = right0[i];
        h = height[i];
        update(1, 0, n - 1);
    }
    dfs(1, 0, n - 1);
    for (int i = 0; i < n; i++)
        finalHeight[i] = ans[i];
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 384 KB Output is correct
2 Correct 5 ms 512 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 9 ms 896 KB Output is correct
5 Correct 7 ms 880 KB Output is correct
6 Correct 8 ms 896 KB Output is correct

Subtask #2
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 189 ms 13912 KB Output is correct
3 Correct 197 ms 8204 KB Output is correct
4 Correct 595 ms 20856 KB Output is correct
5 Correct 336 ms 21948 KB Output is correct
6 Correct 299 ms 20236 KB Output is correct

Subtask #3
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 8 ms 896 KB Output is correct
5 Correct 7 ms 896 KB Output is correct
6 Correct 6 ms 896 KB Output is correct
7 Correct 2 ms 384 KB Output is correct
8 Correct 185 ms 13944 KB Output is correct
9 Correct 222 ms 8056 KB Output is correct
10 Correct 575 ms 20856 KB Output is correct
11 Correct 432 ms 21880 KB Output is correct
12 Correct 308 ms 20408 KB Output is correct
13 Correct 2 ms 332 KB Output is correct
14 Correct 182 ms 13996 KB Output is correct
15 Correct 31 ms 2040 KB Output is correct
16 Correct 496 ms 21112 KB Output is correct
17 Correct 328 ms 20468 KB Output is correct
18 Correct 280 ms 20476 KB Output is correct

Subtask #4
39.0 / 39.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 252 KB Output is correct
2 Correct 4 ms 512 KB Output is correct
3 Correct 5 ms 356 KB Output is correct
4 Correct 8 ms 896 KB Output is correct
5 Correct 7 ms 896 KB Output is correct
6 Correct 10 ms 896 KB Output is correct
7 Correct 2 ms 384 KB Output is correct
8 Correct 171 ms 13944 KB Output is correct
9 Correct 160 ms 8060 KB Output is correct
10 Correct 542 ms 20760 KB Output is correct
11 Correct 313 ms 21880 KB Output is correct
12 Correct 318 ms 20216 KB Output is correct
13 Correct 2 ms 256 KB Output is correct
14 Correct 224 ms 13944 KB Output is correct
15 Correct 33 ms 2040 KB Output is correct
16 Correct 494 ms 21016 KB Output is correct
17 Correct 303 ms 20416 KB Output is correct
18 Correct 287 ms 20464 KB Output is correct
19 Correct 677 ms 77136 KB Output is correct
20 Correct 673 ms 74696 KB Output is correct
21 Correct 757 ms 77124 KB Output is correct
22 Correct 761 ms 74752 KB Output is correct
23 Correct 657 ms 74616 KB Output is correct
24 Correct 818 ms 74640 KB Output is correct
25 Correct 810 ms 74576 KB Output is correct
26 Correct 761 ms 77128 KB Output is correct
27 Correct 715 ms 77092 KB Output is correct
28 Correct 766 ms 74688 KB Output is correct
29 Correct 663 ms 74692 KB Output is correct
30 Correct 768 ms 74672 KB Output is correct