oj.uz

답안 #375287

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
375287 2021-03-09T06:23:54 Z Mamnoon_Siam Swap (BOI16_swap) C++17
48 / 100
 1000 ms 163632 KB 
#include <bits/stdc++.h>
using namespace std;

using ll = long long;
using ii = pair<int, int>;
using vi = vector<int>;
#define all(v) begin(v), end(v)
#define sz(v) (int)(v).size()
#define fi first
#define se second

const int N = 4e5 + 3;

map<int, vi> dp[N];
int a[N], n, nn;

vi merge(vi p, vi q) {
  vi r;
  int pw = 1;
  int i = 0, j = 0;
  while(i < sz(p) or j < sz(q)) {
    r.insert(r.end(), p.begin()+i, p.begin()+min(sz(p), i+pw));
    r.insert(r.end(), q.begin()+j, q.begin()+min(sz(q), j+pw));
    i = min(i+pw, sz(p));
    j = min(j+pw, sz(q));
    pw *= 2;
  }
  return r;
}

vi f(int u, int k) {
  if(sz(dp[u][k])) return dp[u][k];
  vi& ret = dp[u][k];
  if(2*u > nn) return ret = {k};
  { // don't use any edge
    vi l = f(2*u, a[2*u]);
    vi r = f(2*u+1, a[2*u+1]);
    ret = merge(l, r);
    ret.insert(ret.begin(), k);
  }
  { // use only left edge
    vi l = f(2*u, k);
    vi r = f(2*u+1, a[2*u+1]);
    vi tmp = merge(l, r);
    tmp.insert(tmp.begin(), a[2*u]);
    ret = min(ret, tmp);
  }
  { // use only right edge
    vi l = f(2*u, a[2*u]);
    vi r = f(2*u+1, k);
    vi tmp = merge(l, r);
    tmp.insert(tmp.begin(), a[2*u+1]);
    ret = min(ret, tmp);
  }
  { // use both edges
    vi l = f(2*u, k);
    vi r = f(2*u+1, a[2*u]);
    vi tmp = merge(l, r);
    tmp.insert(tmp.begin(), a[2*u+1]);
    ret = min(ret, tmp);
  }
  return ret;
}

int main(int argc, char* argv[]) {
  cin.sync_with_stdio(0); cin.tie(0);
  cin.exceptions(cin.failbit);
#ifdef LOCAL
  freopen("in", "r", stdin);
#endif
  cin >> n;
  nn = 1;
  while(nn-1 < n) nn *= 2;
  nn--;
  for(int i = 1; i <= n; ++i)
    cin >> a[i];
  for(int i = n+1; i <= nn; ++i)
    a[i] = n+1;
  vi ans = f(1, a[1]);
  for(int i = 0; i < n; ++i)
    cout << ans[i] << ' ';
  cout << endl;
}

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 13 ms 19180 KB Output is correct
2 Correct 14 ms 19180 KB Output is correct
3 Correct 13 ms 19180 KB Output is correct
4 Correct 13 ms 19180 KB Output is correct
5 Correct 13 ms 19180 KB Output is correct

Subtask #2
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 13 ms 19180 KB Output is correct
2 Correct 14 ms 19180 KB Output is correct
3 Correct 13 ms 19180 KB Output is correct
4 Correct 13 ms 19180 KB Output is correct
5 Correct 13 ms 19180 KB Output is correct
6 Correct 14 ms 19180 KB Output is correct
7 Correct 14 ms 19180 KB Output is correct
8 Correct 13 ms 19180 KB Output is correct
9 Correct 14 ms 19180 KB Output is correct
10 Correct 13 ms 19180 KB Output is correct

Subtask #3
27.0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Correct 13 ms 19180 KB Output is correct
2 Correct 14 ms 19180 KB Output is correct
3 Correct 13 ms 19180 KB Output is correct
4 Correct 13 ms 19180 KB Output is correct
5 Correct 13 ms 19180 KB Output is correct
6 Correct 14 ms 19180 KB Output is correct
7 Correct 14 ms 19180 KB Output is correct
8 Correct 13 ms 19180 KB Output is correct
9 Correct 14 ms 19180 KB Output is correct
10 Correct 13 ms 19180 KB Output is correct
11 Correct 26 ms 20844 KB Output is correct
12 Correct 26 ms 20844 KB Output is correct
13 Correct 26 ms 20844 KB Output is correct
14 Correct 26 ms 20844 KB Output is correct
15 Correct 26 ms 20972 KB Output is correct

Subtask #4
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 13 ms 19180 KB Output is correct
2 Correct 14 ms 19180 KB Output is correct
3 Correct 13 ms 19180 KB Output is correct
4 Correct 13 ms 19180 KB Output is correct
5 Correct 13 ms 19180 KB Output is correct
6 Correct 14 ms 19180 KB Output is correct
7 Correct 14 ms 19180 KB Output is correct
8 Correct 13 ms 19180 KB Output is correct
9 Correct 14 ms 19180 KB Output is correct
10 Correct 13 ms 19180 KB Output is correct
11 Correct 26 ms 20844 KB Output is correct
12 Correct 26 ms 20844 KB Output is correct
13 Correct 26 ms 20844 KB Output is correct
14 Correct 26 ms 20844 KB Output is correct
15 Correct 26 ms 20972 KB Output is correct
16 Execution timed out 1098 ms 163632 KB Time limit exceeded
17 Halted 0 ms 0 KB -

Subtask #5
0 / 32.0

# 결과 실행 시간 메모리 Grader output
1 Correct 13 ms 19180 KB Output is correct
2 Correct 14 ms 19180 KB Output is correct
3 Correct 13 ms 19180 KB Output is correct
4 Correct 13 ms 19180 KB Output is correct
5 Correct 13 ms 19180 KB Output is correct
6 Correct 14 ms 19180 KB Output is correct
7 Correct 14 ms 19180 KB Output is correct
8 Correct 13 ms 19180 KB Output is correct
9 Correct 14 ms 19180 KB Output is correct
10 Correct 13 ms 19180 KB Output is correct
11 Correct 26 ms 20844 KB Output is correct
12 Correct 26 ms 20844 KB Output is correct
13 Correct 26 ms 20844 KB Output is correct
14 Correct 26 ms 20844 KB Output is correct
15 Correct 26 ms 20972 KB Output is correct
16 Execution timed out 1098 ms 163632 KB Time limit exceeded
17 Halted 0 ms 0 KB -