oj.uz

답안 #72239

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
72239 2018-08-26T06:18:02 Z cat > /dev/null(#2231, lobo_prix, jms100300, enochjung) 박스런 (FXCUP3_box) C++17
100 / 100
 228 ms 13328 KB 
#include<iostream>
#include<algorithm>
#include<cstring>
using namespace std;

const int MAX_N = 5e5;
pair<int, int> tmp[MAX_N];
int arr[MAX_N];
int res[MAX_N];

const int MAX_T = MAX_N+10;
int tree[MAX_T+1];

void update(int x, int val) {
    x = MAX_T - x - 1;
    tree[x] = val;

    for (int k = x; k <= MAX_T; k += (k & -k))
        tree[k] = max(tree[k], val);
}

int query(int x) {
    x = MAX_T - x - 1;
    int ret = -1;
    for (int k = x; k > 0; k -= (k & -k))
        ret = max(ret, tree[k]);
    return ret;
}

int main(void) {
    ios_base::sync_with_stdio(false), cin.tie(NULL);
    memset(tree, -1, sizeof tree);

    int N;  cin >> N;
    for (int i = 0; i < N; i ++) {
        cin >> arr[i];
        tmp[i].first = arr[i];
        tmp[i].second = i;
    }

    sort(tmp, tmp + N);
    int cur_idx = -1;
    int prv_val = -1;
    for (int i = 0; i < N; i ++) {
        if (prv_val != tmp[i].first) 
            cur_idx++;
        arr[tmp[i].second] = cur_idx;
        prv_val = tmp[i].first;
    }
    cur_idx ++;

    int last = 0;

    memset(res, -1, sizeof res);
    update(arr[0], 0);
    for (int i = 1; i < N; i ++) {
        if (arr[i] > arr[i-1]) { 
            int qidx = query(arr[i]);
            if (qidx != -1) {
                for (int k = qidx+1; k < i-last; k ++) 
                    res[i-k-1] = k+1;

                last = max(last, i-qidx-1);
            }
            else {
                for (; last < i; last ++)
                    res[last] = i-last;
            }
        }
        update(arr[i], i);
    }

    for (int i = 0; i < N; i ++)
        cout << res[i] << ' ';
    cout << endl;
}

Subtask #1
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 4216 KB Output is correct
2 Correct 6 ms 4344 KB Output is correct
3 Correct 6 ms 4492 KB Output is correct
4 Correct 7 ms 4492 KB Output is correct
5 Correct 6 ms 4492 KB Output is correct
6 Correct 6 ms 4524 KB Output is correct
7 Correct 6 ms 4524 KB Output is correct
8 Correct 6 ms 4544 KB Output is correct
9 Correct 5 ms 4544 KB Output is correct
10 Correct 5 ms 4544 KB Output is correct
11 Correct 5 ms 4544 KB Output is correct

Subtask #2
83.0 / 83.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 4216 KB Output is correct
2 Correct 6 ms 4344 KB Output is correct
3 Correct 6 ms 4492 KB Output is correct
4 Correct 7 ms 4492 KB Output is correct
5 Correct 6 ms 4492 KB Output is correct
6 Correct 6 ms 4524 KB Output is correct
7 Correct 6 ms 4524 KB Output is correct
8 Correct 6 ms 4544 KB Output is correct
9 Correct 5 ms 4544 KB Output is correct
10 Correct 5 ms 4544 KB Output is correct
11 Correct 5 ms 4544 KB Output is correct
12 Correct 7 ms 4544 KB Output is correct
13 Correct 8 ms 4716 KB Output is correct
14 Correct 22 ms 5204 KB Output is correct
15 Correct 41 ms 5756 KB Output is correct
16 Correct 52 ms 6232 KB Output is correct
17 Correct 140 ms 9000 KB Output is correct
18 Correct 164 ms 10396 KB Output is correct
19 Correct 209 ms 12060 KB Output is correct
20 Correct 225 ms 13328 KB Output is correct
21 Correct 228 ms 13328 KB Output is correct