結果

問題 No.2641 draw X
ユーザー pitP
提出日時 2024-02-19 22:28:18
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
TLE  
実行時間 -
コード長 2,697 bytes
コンパイル時間 4,376 ms
コンパイル使用メモリ 257,552 KB
最終ジャッジ日時 2025-02-19 17:15:20
ジャッジサーバーID
(参考情報)
judge5 / judge3
このコードへのチャレンジ
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ファイルパターン 結果
sample -- * 3
other AC * 16 TLE * 1 -- * 24
権限があれば一括ダウンロードができます

ソースコード

diff #
プレゼンテーションモードにする

#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
istream &operator>>(istream &is, modint &a) { long long v; is >> v; a = v; return is; }
ostream &operator<<(ostream &os, const modint &a) { return os << a.val(); }
istream &operator>>(istream &is, modint998244353 &a) { long long v; is >> v; a = v; return is; }
ostream &operator<<(ostream &os, const modint998244353 &a) { return os << a.val(); }
istream &operator>>(istream &is, modint1000000007 &a) { long long v; is >> v; a = v; return is; }
ostream &operator<<(ostream &os, const modint1000000007 &a) { return os << a.val(); }
typedef long long ll;
typedef vector<vector<int>> Graph;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
#define FOR(i,l,r) for (int i = l;i < (int)(r); i++)
#define rep(i,n) for (int i = 0;i < (int)(n); i++)
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define my_sort(x) sort(x.begin(), x.end())
#define my_max(x) *max_element(all(x))
#define my_min(x) *min_element(all(x))
template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; }
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; }
const int INF = (1<<30) - 1;
const ll LINF = (1LL<<62) - 1;
const int MOD = 998244353;
const int MOD2 = 1e9+7;
const double PI = acos(-1);
vector<int> di = {1,0,-1,0};
vector<int> dj = {0,1,0,-1};
#ifdef LOCAL
# include <debug_print.hpp>
# define debug(...) debug_print::multi_print(#__VA_ARGS__, __VA_ARGS__)
#else
# define debug(...) (static_cast<void>(0))
#endif
int main(){
cin.tie(0);
ios_base::sync_with_stdio(false);
int H, W;
cin >> H >> W;
vector<string> g(H);
for (auto& x : g) cin >> x;
vector S(H, vector<bool>(W, false));
auto ok = [&](int i, int j) { return 0 <= i and i < H and 0 <= j and j < W; };
auto test = [&](int i, int j, int d) {
for (auto& x : vector{+d, -d}) {
for (auto& y : vector{+d, -d}) {
int s = i + x, t = j + y;
if (!ok(s, t) or g[s][t] != '#') return false;
}
}
S[i][j] = true;
for (auto& x : vector{+d, -d}) {
for (auto& y : vector{+d, -d}) {
int s = i + x, t = j + y;
S[s][t] = true;
}
}
return true;
};
for (int i = 0; i < H; i++) {
for (int j = 0; j < W; j++) {
if (g[i][j] != '#') continue;
if (test(i, j, 1)) {
int d = 1;
while (test(i, j, d + 1)) d++;
}
}
}
bool is_ok = true;
rep(i,H)rep(j,W)if(g[i][j]=='#'&&(!S[i][j]))is_ok = false;
cout << (is_ok ? "Yes" : "No") << endl;
}
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