oj.uz

답안 #224181

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
224181 2020-04-17T11:29:25 Z Bruteforceman Swap (BOI16_swap) C++11
48 / 100
 27 ms 6272 KB 
#include <bits/stdc++.h>
using namespace std;
using pii = pair <int, int>;
int dp[1005][1005];
int a[1005];
int op[1005][1005];
int n;

void dfs(int x) {
  int l = x << 1;
  int r = l + 1;
  if(l <= n) dfs(l);
  if(r <= n) dfs(r);
  
  vector <int> imp;
  int cur = x;
  imp.emplace_back(a[x]);
  while(cur > 1) {
    int nxt = cur / 2;
    imp.emplace_back(a[nxt]);
    if(cur & 1) imp.emplace_back(a[cur ^ 1]);
    cur = nxt;
  }
  if(r <= n) {
    for(int y : imp) { 
      vector <pii> opt ({{INT_MAX, INT_MAX}, {INT_MAX, INT_MAX}, {INT_MAX, INT_MAX}});
      for(int i = 0; i <= 1; i++) {
      for(int j = 0; j <= 1; j++) {
        int p = y, q = a[l], s = a[r];
        if(i) swap(p, q);
        if(j) swap(p, s);
        vector <pii> can;
        can.emplace_back(x, p);
        can.emplace_back(dp[l][q], q);
        can.emplace_back(dp[r][s], s);
        sort(can.begin(), can.end());
        if(opt > can) {
          opt = can;
          for(auto w : can) if(w.second == y) dp[x][y] = w.first;
          op[x][y] = j * 2 + i;
        }
      }
    }
    }
  } else if (l <= n) {
    for(int y : imp) {
      vector <pii> opt ({{INT_MAX, INT_MAX}, {INT_MAX, INT_MAX}});
      for(int i = 0; i <= 1; i++) {
      int p = y, q = a[l];
      if(i) swap(p, q);
      vector <pii> can;
      can.emplace_back(x, p);
      can.emplace_back(dp[l][q], q);
      sort(can.begin(), can.end());
      if(opt > can) {
        opt = can;
        for(auto w : can) if(w.second == y) dp[x][y] = w.first;
        op[x][y] = i;
      }
      }
    }
  } else {
    for(int y : imp) {
      dp[x][y] = x;
    }
  }
}

void getOpt(int x) {
  int i = op[x][a[x]] & 1;
  int j = op[x][a[x]] >> 1;
  int l = x << 1;
  int r = l + 1;
  if(i) swap(a[x], a[l]);
  if(j) swap(a[x], a[r]);
  if(l <= n) getOpt(l);
  if(r <= n) getOpt(r);
}

int main() {
  cin >> n;
  for(int i = 1; i <= n; i++) {
    cin >> a[i];
  }
  dfs(1);
  getOpt(1);
  for(int i = 1; i <= n; i++) {
    cout << a[i] << ' ';
  }
  cout << endl;
  return 0;
}

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 256 KB Output is correct
4 Correct 5 ms 512 KB Output is correct
5 Correct 4 ms 384 KB Output is correct

Subtask #2
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 256 KB Output is correct
4 Correct 5 ms 512 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 5 ms 640 KB Output is correct
7 Correct 5 ms 640 KB Output is correct
8 Correct 5 ms 640 KB Output is correct
9 Correct 5 ms 512 KB Output is correct
10 Correct 5 ms 512 KB Output is correct

Subtask #3
27.0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 256 KB Output is correct
4 Correct 5 ms 512 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 5 ms 640 KB Output is correct
7 Correct 5 ms 640 KB Output is correct
8 Correct 5 ms 640 KB Output is correct
9 Correct 5 ms 512 KB Output is correct
10 Correct 5 ms 512 KB Output is correct
11 Correct 12 ms 6272 KB Output is correct
12 Correct 12 ms 6272 KB Output is correct
13 Correct 12 ms 6272 KB Output is correct
14 Correct 12 ms 6272 KB Output is correct
15 Correct 13 ms 6272 KB Output is correct

Subtask #4
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 256 KB Output is correct
4 Correct 5 ms 512 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 5 ms 640 KB Output is correct
7 Correct 5 ms 640 KB Output is correct
8 Correct 5 ms 640 KB Output is correct
9 Correct 5 ms 512 KB Output is correct
10 Correct 5 ms 512 KB Output is correct
11 Correct 12 ms 6272 KB Output is correct
12 Correct 12 ms 6272 KB Output is correct
13 Correct 12 ms 6272 KB Output is correct
14 Correct 12 ms 6272 KB Output is correct
15 Correct 13 ms 6272 KB Output is correct
16 Runtime error 27 ms 768 KB Execution killed with signal 11 (could be triggered by violating memory limits)
17 Halted 0 ms 0 KB -

Subtask #5
0 / 32.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 256 KB Output is correct
4 Correct 5 ms 512 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 5 ms 640 KB Output is correct
7 Correct 5 ms 640 KB Output is correct
8 Correct 5 ms 640 KB Output is correct
9 Correct 5 ms 512 KB Output is correct
10 Correct 5 ms 512 KB Output is correct
11 Correct 12 ms 6272 KB Output is correct
12 Correct 12 ms 6272 KB Output is correct
13 Correct 12 ms 6272 KB Output is correct
14 Correct 12 ms 6272 KB Output is correct
15 Correct 13 ms 6272 KB Output is correct
16 Runtime error 27 ms 768 KB Execution killed with signal 11 (could be triggered by violating memory limits)
17 Halted 0 ms 0 KB -