답안 #563587

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
563587 2022-05-17T15:51:48 Z hoanghq2004 Swap (BOI16_swap) C++14
100 / 100
84 ms 31696 KB
#include <bits/stdc++.h>

using namespace std;

const int N = 2e5 + 10;

int n, a[N];
map <int, int> f[N];

int GetPos(int u, int val) {
    if (f[u].find(val) != f[u].end()) return f[u][val];
    if (u * 2 > n) return f[u][val] = u;
    if (val < a[u * 2] && val < a[u * 2 + 1]) return f[u][val] = u;
    if (a[u * 2] < val && a[u * 2] < a[u * 2 + 1]) return f[u][val] = GetPos(u * 2, val);
    else {
        int Min = min(val, a[u * 2]);
        int Max = max(val, a[u * 2]);
        if (GetPos(u * 2, Min) < GetPos(u * 2 + 1, Min)) {
            if (val == Min) return f[u][val] = GetPos(u * 2, val);
            else return f[u][val] = GetPos(u * 2 + 1, val);
        } else {
            if (val == Min) return f[u][val] = GetPos(u * 2 + 1, val);
            else return f[u][val] = GetPos(u * 2, val);
        }
    }
//    assert(0);
}

int main() {
    ios :: sync_with_stdio(0); cin.tie(0);
    cin >> n;
    memset(a, 60, sizeof(a));
    for (int i = 1; i <= n; ++i) cin >> a[i];
    for (int u = 1; u <= n; ++u) {
        if (u * 2 > n) continue;
        if (a[u] < a[u * 2] && a[u] < a[u * 2 + 1]) continue;
        if (a[u * 2] < a[u] && a[u * 2] < a[u * 2 + 1])
            swap(a[u * 2], a[u]);
        else {
            int Min = min(a[u], a[u * 2]);
            int Max = max(a[u], a[u * 2]);
            swap(a[u * 2 + 1], a[u]);
            if (GetPos(u * 2, Min) < GetPos(u * 2 + 1, Min)) {
                a[u * 2] = Min;
                a[u * 2 + 1] = Max;
            } else {
                a[u * 2] = Max;
                a[u * 2 + 1] = Min;
            }
        }
    }
    for (int i = 1; i <= n; ++i) cout << a[i] << ' ';
}

Compilation message

swap.cpp: In function 'int GetPos(int, int)':
swap.cpp:17:13: warning: unused variable 'Max' [-Wunused-variable]
   17 |         int Max = max(val, a[u * 2]);
      |             ^~~
# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 10452 KB Output is correct
2 Correct 5 ms 10452 KB Output is correct
3 Correct 5 ms 10488 KB Output is correct
4 Correct 5 ms 10452 KB Output is correct
5 Correct 5 ms 10452 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 10452 KB Output is correct
2 Correct 5 ms 10452 KB Output is correct
3 Correct 5 ms 10488 KB Output is correct
4 Correct 5 ms 10452 KB Output is correct
5 Correct 5 ms 10452 KB Output is correct
6 Correct 5 ms 10452 KB Output is correct
7 Correct 6 ms 10452 KB Output is correct
8 Correct 5 ms 10484 KB Output is correct
9 Correct 5 ms 10468 KB Output is correct
10 Correct 5 ms 10452 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 10452 KB Output is correct
2 Correct 5 ms 10452 KB Output is correct
3 Correct 5 ms 10488 KB Output is correct
4 Correct 5 ms 10452 KB Output is correct
5 Correct 5 ms 10452 KB Output is correct
6 Correct 5 ms 10452 KB Output is correct
7 Correct 6 ms 10452 KB Output is correct
8 Correct 5 ms 10484 KB Output is correct
9 Correct 5 ms 10468 KB Output is correct
10 Correct 5 ms 10452 KB Output is correct
11 Correct 5 ms 10452 KB Output is correct
12 Correct 5 ms 10488 KB Output is correct
13 Correct 6 ms 10452 KB Output is correct
14 Correct 6 ms 10580 KB Output is correct
15 Correct 6 ms 10508 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 10452 KB Output is correct
2 Correct 5 ms 10452 KB Output is correct
3 Correct 5 ms 10488 KB Output is correct
4 Correct 5 ms 10452 KB Output is correct
5 Correct 5 ms 10452 KB Output is correct
6 Correct 5 ms 10452 KB Output is correct
7 Correct 6 ms 10452 KB Output is correct
8 Correct 5 ms 10484 KB Output is correct
9 Correct 5 ms 10468 KB Output is correct
10 Correct 5 ms 10452 KB Output is correct
11 Correct 5 ms 10452 KB Output is correct
12 Correct 5 ms 10488 KB Output is correct
13 Correct 6 ms 10452 KB Output is correct
14 Correct 6 ms 10580 KB Output is correct
15 Correct 6 ms 10508 KB Output is correct
16 Correct 19 ms 12804 KB Output is correct
17 Correct 17 ms 12796 KB Output is correct
18 Correct 17 ms 12756 KB Output is correct
19 Correct 22 ms 15724 KB Output is correct
20 Correct 23 ms 15612 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 10452 KB Output is correct
2 Correct 5 ms 10452 KB Output is correct
3 Correct 5 ms 10488 KB Output is correct
4 Correct 5 ms 10452 KB Output is correct
5 Correct 5 ms 10452 KB Output is correct
6 Correct 5 ms 10452 KB Output is correct
7 Correct 6 ms 10452 KB Output is correct
8 Correct 5 ms 10484 KB Output is correct
9 Correct 5 ms 10468 KB Output is correct
10 Correct 5 ms 10452 KB Output is correct
11 Correct 5 ms 10452 KB Output is correct
12 Correct 5 ms 10488 KB Output is correct
13 Correct 6 ms 10452 KB Output is correct
14 Correct 6 ms 10580 KB Output is correct
15 Correct 6 ms 10508 KB Output is correct
16 Correct 19 ms 12804 KB Output is correct
17 Correct 17 ms 12796 KB Output is correct
18 Correct 17 ms 12756 KB Output is correct
19 Correct 22 ms 15724 KB Output is correct
20 Correct 23 ms 15612 KB Output is correct
21 Correct 56 ms 20064 KB Output is correct
22 Correct 56 ms 19924 KB Output is correct
23 Correct 58 ms 19972 KB Output is correct
24 Correct 83 ms 31692 KB Output is correct
25 Correct 84 ms 31696 KB Output is correct