提出 #69659243

---

ソースコード 拡げる

#include<bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>

#ifdef jlocal
#include<jdebug/debug.hpp>
#else
#define debug(...) 0;
#endif

using namespace __gnu_pbds;
using namespace std;
typedef long long ll;
typedef long double ld;
typedef vector<int> vi;
typedef vector<ll> vll;
typedef pair<int,int> pii;
typedef vector<pii> vii;
template <typename T> using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;

#if defined(__LP64__) || defined(_WIN64)
typedef __int128 lll;
#else
typedef long long lll;
#endif

#define pcount(x) __builtin_popcount(x)
#define pcountll(x) __builtin_popcountll(x)
#define all(x) x.begin(),x.end()

const ld pi = 3.14159265358979323846L;
const ld sqrt2 = 1.41421356237309504880L;

template<class T>
istream& operator>>(istream& in, vector<T> &a){
	for (int i = 0; i < a.size(); i ++)
		in >> a[i];
	return in;
}

template<class T>
ostream& operator<<(ostream& out, vector<T> &a){
	for (int i = 0; i < a.size(); i ++){
		if (i > 0) out << ' ';
		out << a[i];
	}
	return out;
}

#if defined(__LP64__) || defined(_WIN64)

istream& operator>>(istream& in, __int128 &x){
	string S;
	in >> S;
	for (char &y : S){
		x *= 10;
		x += (y - '0');
	}
	return in;
}

ostream& operator<<(ostream& out, __int128 &x){
	string s;
	while(x > 0){
		s.push_back((x % 10) + '0');
		x /= 10;
	}
	if (s.size() == 0)
		s.push_back('0');
	reverse(all(s));
	return out << s;
}

#endif

mt19937_64 MT64;
void pre_init() {
	MT64 = mt19937_64(chrono::system_clock::now().
	time_since_epoch().count());
}
int dx[] = {0, 0, 1, -1};
int dy[] = {1, -1, 0, 0};

void solve(int caso){
	int n, m;
	cin >> n >> m;
	vector<string> mat(n);
	cin >> mat;

	vector<pair<int, int>> revisar;
	for (int i = 0; i < n; i ++){
		for (int j = 0; j < m; j ++){
			if (mat[i][j] == '#'){
				revisar.emplace_back(i, j);
			}
		}
	}
	while(revisar.size() > 0){
		set<pair<int, int>> revisar2;
		debug(revisar);
		for (auto [x, y] : revisar){
			for (int k = 0; k < 4; k ++){
				int nx = x + dx[k];
				int ny = y + dy[k];
				if (nx < 0 or ny < 0 or nx >= n or ny >= m)
					continue;

				if (mat[nx][ny] != '.')
					continue;

				int hay = 0;
				for (int k2 = 0; k2 < 4; k2 ++){
					int nx2 = nx + dx[k2];
					int ny2 = ny + dy[k2];
					if (nx2 < 0 or ny2 < 0 or nx2 >= n or ny2 >= m)
						continue;

					if (mat[nx2][ny2] == '#')
						hay ++;
				}
				debug(hay);
				if (hay == 1)
					revisar2.insert({nx, ny});
			}
		}
		debug(revisar2);
		revisar.resize(0);
		for (auto [x, y] : revisar2){
			mat[x][y] = '#';
			revisar.emplace_back(x, y);
		}
	}
	int ans = 0;
	for (int i = 0; i < n; i ++){
		for (int j = 0; j < m; j ++){
			if (mat[i][j] == '#')
				ans ++;
		}
	}
	cout << ans << '\n';
}

int main(){
#ifndef jlocal
	ios::sync_with_stdio(0); cin.tie(0);
#endif
	pre_init();

	int t = 1;
	for (int i = 1; i <= t; i ++){
		solve(i);
	}
	return 0;
}

提出情報

コンパイルエラー

Main.cpp: In function ‘void solve(int)’:
Main.cpp:8:20: warning: statement has no effect [-Wunused-value]
    8 | #define debug(...) 0;
      |                    ^
Main.cpp:100:17: note: in expansion of macro ‘debug’
  100 |                 debug(revisar);
      |                 ^~~~~
Main.cpp:8:20: warning: statement has no effect [-Wunused-value]
    8 | #define debug(...) 0;
      |                    ^
Main.cpp:121:33: note: in expansion of macro ‘debug’
  121 |                                 debug(hay);
      |                                 ^~~~~
Main.cpp:8:20: warning: statement has no effect [-Wunused-value]
    8 | #define debug(...) 0;
      |                    ^
Main.cpp:126:17: note: in expansion of macro ‘debug’
  126 |                 debug(revisar2);
      |                 ^~~~~
Main.cpp:84:16: warning: unused parameter ‘caso’ [-Wunused-parameter]
   84 | void solve(int caso){
      |            ~~~~^~~~
Main.cpp: In instantiation of ‘std::istream& operator>>(std::istream&, std::vector<_Tp>&) [with T = std::__cxx11::basic_string<char>; std::istream = std::basic_istream<char>]’:
Main.cpp:88:9:   required from here
Main.cpp:36:27: warning: comparison of integer expressions of different signedness: ‘int’ and ‘std::vector<std::__cxx11::basic_string<char> >::size_type’ {aka ‘long unsigned int’} [-Wsign-compare]
   36 |         for (int i = 0; i < a.size(); i ++)
      |                         ~~^~~~~~~~~~

ジャッジ結果