oj.uz

Submission #582618

# Submission time Handle Problem Language Result Execution time Memory
582618 2022-06-24T07:40:18 Z MilosMilutinovic Domino (COCI15_domino) C++14
50 / 160
 3259 ms 114704 KB 
/**
 *    author:  wxhtzdy
 *    created: 24.06.2022 09:28:57
**/
#include <bits/stdc++.h>

using namespace std;

int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);  
  int n, k;
  cin >> n >> k;
  vector<vector<int>> a(n, vector<int>(n));
  for (int i = 0; i < n; i++) {
    for (int j = 0; j < n; j++) {
      cin >> a[i][j];
    }
  }
  long long sum = 0;
  for (int i = 0; i < n; i++) {
    for (int j = 0; j < n; j++) {
      sum += a[i][j];
    }
  }
  vector<tuple<int, int, int>> b;
  for (int i = 0; i < n; i++) {
    for (int j = 0; j < n; j++) {
      if (i + 1 < n) {
        b.emplace_back(-a[i][j] - a[i + 1][j], i * n + j, (i + 1) * n + j);
      }
      if (j + 1 < n) {
        b.emplace_back(-a[i][j] - a[i][j + 1], i * n + j, i * n + j + 1);
      }
    }
  }
  sort(b.begin(), b.end()); 
  b.resize(min((int) b.size(), k * 4));
  long long mx = 0, curr = 0;
  vector<int> v;
  vector<bool> was(n * n);
  auto Valid = [&]() {
    bool ok = true;
    for (int i : v) {
      if (was[i]) {
        ok = false;
      }
      was[i] = true;
    }
    for (int i : v) {
      was[i] = false;
    }                
    return ok;
  };
  function<void(int, int)> Gen = [&](int i, int p) {
    if (p + (int) b.size() - i < k || p > k) {
      return;
    }
    if (i == (int) b.size()) {
      if (Valid()) {
        mx = max(mx, curr);
      }
      return;
    }
    Gen(i + 1, p);
    curr -= get<0>(b[i]);
    v.push_back(get<1>(b[i]));
    v.push_back(get<2>(b[i]));
    Gen(i + 1, p + 1);
    curr += get<0>(b[i]);
    v.pop_back();
    v.pop_back();
  };
  Gen(0, 0);
  cout << sum - mx << '\n';                                               
  return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 84 ms 7624 KB Output is correct
2 Correct 37 ms 7580 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 1 ms 468 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1348 ms 114572 KB Output is correct
2 Correct 722 ms 114612 KB Output is correct

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Incorrect 1 ms 212 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #5
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 783 ms 107732 KB Output is correct
2 Incorrect 417 ms 107764 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #6
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 318 ms 29000 KB Output is correct
2 Incorrect 200 ms 29040 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #7
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1355 ms 114612 KB Output is correct
2 Incorrect 706 ms 114660 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #8
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 488 KB Output is correct
2 Incorrect 24 ms 468 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1373 ms 114616 KB Output is correct
2 Incorrect 751 ms 114704 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 218 ms 788 KB Output is correct
2 Incorrect 213 ms 788 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #11
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 59 ms 212 KB Output is correct
2 Correct 61 ms 212 KB Output is correct

Subtask #12
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1543 ms 114616 KB Output is correct
2 Incorrect 912 ms 114644 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #13
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1968 ms 596 KB Output is correct
2 Incorrect 1968 ms 596 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #14
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2298 ms 28980 KB Output is correct
2 Incorrect 2131 ms 28936 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #15
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1972 ms 296 KB Output is correct
2 Correct 1952 ms 296 KB Output is correct

Subtask #16
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3259 ms 114664 KB Output is correct
2 Incorrect 2628 ms 114660 KB Output isn't correct
3 Halted 0 ms 0 KB -