Submission #1154048

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1154048	2025-02-20 08:11:02	mingga	Furniture (JOI20_furniture)	C++20	100 / 100	157 ms	7408 KiB

furniture

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#include "bits/stdc++.h"
using namespace std;
#define ln "\n"
#define pb push_back
#define fi first
#define se second
#define all(x) (x).begin(), (x).end()
#define sz(x) ((int)(x).size())
// #define int long long
const int mod = 1e9 + 7;
const int inf = 2e9;
const int N = 1e3 + 7;
int n, m, a[N][N], q;
int cross[N * 5];
bool f[N][N];
vector<pair<int, int>> st;
void add(int x, int y) {
  if(f[x][y]) return;
  f[x][y] = 1;
  cross[x + y]--;
  st.push_back({x, y});
}
bool check(int x, int y) {
  if(f[x][y]) return 1;
 
 
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Compilation message (stderr)

furniture.cpp: In function 'int main()':
furniture.cpp:53:24: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   53 |                 freopen(task ".INP", "r", stdin);
      |                 ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
furniture.cpp:54:24: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   54 |                 freopen(task ".OUT", "w", stdout);
      |                 ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 95 / 95