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Submission #206777

# Submission time Handle Problem Language Result Execution time Memory
206777 2020-03-05T08:42:50 Z MrDomino Orchard (NOI14_orchard) C++14
25 / 25
 178 ms 8184 KB 
#include <bits/stdc++.h>

using namespace std;

int main() {
  ios::sync_with_stdio(0);
  cin.tie(0);

  int n, m, total = 0;
  cin >> n >> m;
  vector<vector<int>> a(n);
  for (int i = 0; i < n; i++) {
    a[i].resize(m);
    for (int j = 0; j < m; j++) {
      int x;
      cin >> x;
      if (x == 0) {
        a[i][j] = +1;
      } else {
        a[i][j] = -1;
        total++;
      }
    }
  }
  int sol = (int) 1e9;
  for (int l = 0; l < n; l++) {
    vector<int> sum(m, 0);
    for (int r = l; r < n; r++) {
      for (int j = 0; j < m; j++) {
        sum[j] += a[r][j];
      }
      int pm = 0, p = 0;
      for (int j = 0; j < m; j++) {
        p += sum[j];
        sol = min(sol, p - pm);
        pm = max(pm, p);
      }
    }
  }
  sol += total;
  cout << sol << "\n";
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 248 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 5 ms 376 KB Output is correct

Subtask #2
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 504 KB Output is correct
2 Correct 6 ms 376 KB Output is correct
3 Correct 6 ms 504 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 75 ms 8184 KB Output is correct
2 Correct 81 ms 8184 KB Output is correct
3 Correct 77 ms 8184 KB Output is correct

Subtask #4
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 1528 KB Output is correct
2 Correct 19 ms 1528 KB Output is correct
3 Correct 19 ms 1528 KB Output is correct

Subtask #5
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 380 KB Output is correct
2 Correct 10 ms 376 KB Output is correct
3 Correct 10 ms 376 KB Output is correct

Subtask #6
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 178 ms 3388 KB Output is correct
2 Correct 177 ms 3448 KB Output is correct
3 Correct 175 ms 3268 KB Output is correct