Submission #293052

#	Time	Username	Problem	Language	Result	Execution time	Memory
293052		BThero	Cultivation (JOI17_cultivation)	C++17	5 / 100	626 ms	512 KiB

cultivation

// chrono::system_clock::now().time_since_epoch().count()
#include<bits/stdc++.h>

#define pb push_back
#define eb emplace_back
#define mp make_pair
#define fi first
#define se second
#define all(x) (x).begin(), (x).end()
#define debug(x) cerr << #x << " = " << x << endl;

using namespace std;

typedef long long ll;
typedef pair<int, int> pii;

pii arr[305];
int mark[105][105];
int R, C, n;

void solve() {
  scanf("%d %d", &R, &C);
  scanf("%d", &n);
  
  for (int i = 1; i <= n; ++i) {
    int x, y;
    scanf("%d %d", &x, &y);
    arr[i] = mp(x, y);
  }
  
  int ans = R + C;
  
  for (int dx = 0; dx <= R - 1; ++dx) {
    for (int dy = 0; dy <= C - 1; ++dy) {
      for (int x = 1; x <= 2 * R; ++x) {
        for (int y = 1; y <= 2 * C; ++y) {
          mark[x][y] = 0;
        }
      }
    
      for (int i = 1; i <= n; ++i) {
        int x1 = arr[i].fi, x2 = arr[i].fi + dx;
        int y1 = arr[i].se, y2 = arr[i].se + dy;
        
        for (int x = x1; x <= x2; ++x) {
          for (int y = y1; y <= y2; ++y) {
            mark[x][y] = 1;
          }
        }
      }
      
      for (int x1 = 1; x1 <= dx + 1; ++x1) {
        for (int y1 = 1; y1 <= dy + 1; ++y1) {
          bool ok = 1;
          
          for (int i = 0; i < R; ++i) {
            for (int j = 0; j < C; ++j) {
              ok &= mark[x1 + i][y1 + j];
            }
          }
          
          if (ok) {
            ans = min(ans, dx + dy);
          }
        }
      }
    }
  }
  
  printf("%d\n", ans);
}

int main() {
  int tt = 1;
  
  while (tt--) {
    solve();
  }

  return 0;
}

Compilation message (stderr)

cultivation.cpp: In function 'void solve()':
cultivation.cpp:22:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   22 |   scanf("%d %d", &R, &C);
      |   ~~~~~^~~~~~~~~~~~~~~~~
cultivation.cpp:23:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   23 |   scanf("%d", &n);
      |   ~~~~~^~~~~~~~~~
cultivation.cpp:27:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   27 |     scanf("%d %d", &x, &y);
      |     ~~~~~^~~~~~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 0 / 10
• Subtask 3: 0 / 15
• Subtask 4: 0 / 30
• Subtask 5: 0 / 20
• Subtask 6: 0 / 20