oj.uz

답안 #72168

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
72168 2018-08-26T05:42:46 Z 유애나(#2199, kdh9949) 박스런 (FXCUP3_box) C++17
100 / 100
 482 ms 48600 KB 
#include <bits/stdc++.h>
using namespace std;

const int N = 500005;

int n, h[N], lg[N], d[N][20], nx[N];

int g(int s, int e){
    e = min(e, n + 1);
    int l = lg[e - s + 1];
    int x = d[s][l], y = d[e - (1 << l) + 1][l];
    return (h[x] > h[y] || (h[x] == h[y] && x < y)) ? x : y;
}

int main(){
    scanf("%d", &n);
    for(int i = 1; i <= n; i++) scanf("%d", h + i);
    h[n + 1] = int(2e9);
    for(int i = 1, j = 0; i <= n + 1; i++){
        while((2 << j) < i) j++;
        lg[i] = j;
        d[i][0] = i;
    }
    for(int i = 1; i < 20; i++){
        for(int j = 1; j <= n + 1; j++){
            int x = d[j][i - 1], y = d[min(n + 1, j + (1 << (i - 1)))][i - 1];
            if(h[x] > h[y] || (h[x] == h[y] && x < y)) d[j][i] = x;
            else d[j][i] = y;
        }
    }
    for(int i = 1; i <= n; i++){
        nx[i] = i;
        for(int j = 19; j >= 0; j--){
            if(h[d[nx[i]][j]] <= h[i]) nx[i] += (1 << j);
        }
    }
    for(int i = 1; i <= n; i++){
        int t = g(1, i);
        while(t < n){
            int nt = nx[t];
            if(nt <= min(n, t + i)){
                t = nt - i;
                break;
            } 
            else t = g(t + 1, t + i);
        }
        printf("%d ", t >= n ? -1 : t);
    }
    puts("");
    return 0;
}

Compilation message

box.cpp: In function 'int main()':
box.cpp:16:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &n);
     ~~~~~^~~~~~~~~~
box.cpp:17:38: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     for(int i = 1; i <= n; i++) scanf("%d", h + i);
                                 ~~~~~^~~~~~~~~~~~~

Subtask #1
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 412 KB Output is correct
4 Correct 3 ms 488 KB Output is correct
5 Correct 2 ms 544 KB Output is correct
6 Correct 2 ms 544 KB Output is correct
7 Correct 2 ms 544 KB Output is correct
8 Correct 3 ms 544 KB Output is correct
9 Correct 2 ms 544 KB Output is correct
10 Correct 3 ms 544 KB Output is correct
11 Correct 2 ms 544 KB Output is correct

Subtask #2
83.0 / 83.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 412 KB Output is correct
4 Correct 3 ms 488 KB Output is correct
5 Correct 2 ms 544 KB Output is correct
6 Correct 2 ms 544 KB Output is correct
7 Correct 2 ms 544 KB Output is correct
8 Correct 3 ms 544 KB Output is correct
9 Correct 2 ms 544 KB Output is correct
10 Correct 3 ms 544 KB Output is correct
11 Correct 2 ms 544 KB Output is correct
12 Correct 2 ms 544 KB Output is correct
13 Correct 4 ms 1056 KB Output is correct
14 Correct 31 ms 4972 KB Output is correct
15 Correct 81 ms 7676 KB Output is correct
16 Correct 68 ms 10108 KB Output is correct
17 Correct 203 ms 25008 KB Output is correct
18 Correct 314 ms 34460 KB Output is correct
19 Correct 405 ms 43092 KB Output is correct
20 Correct 482 ms 48600 KB Output is correct
21 Correct 438 ms 48600 KB Output is correct