제출 #438746

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
438746		SorahISA	Bold (COCI21_bold)	C++17	50 / 50	1 ms	308 KiB

bold

// #pragma GCC optimize("Ofast", "unroll-loops")
#include <bits/stdc++.h>
using namespace std;

#define int long long
#define double long double
using pii = pair<int, int>;
template<typename T>
using Prior = std::priority_queue<T>;
template<typename T>
using prior = std::priority_queue<T, vector<T>, greater<T>>;

#define X first
#define Y second
#define eb emplace_back
#define ALL(x) begin(x), end(x)
#define RALL(x) rbegin(x), rend(x)
#define fastIO() ios_base::sync_with_stdio(0), cin.tie(0)

template<class T>
ostream& operator << (ostream &os, vector<T> vec) {
    for (int i = 0; i < vec.size(); ++i) {
        if (i) os << "\n";
        os << vec[i];
    }
    return os;
}

void solve() {
    int n, m; cin >> n >> m;
    
    vector<string> mp(n);
    for (auto &str : mp) cin >> str;
    
    for (int i = n-1; i >= 0; --i) {
        for (int j = m-1; j >= 0; --j) {
            
            if ((mp[i][j] == '#') or
                (i and mp[i-1][j] == '#') or
                (j and mp[i][j-1] == '#') or
                (i and j and mp[i-1][j-1] == '#')) {
                mp[i][j] = '#';
            }
            else {
                mp[i][j] = '.';
            }
        }
    }
    
    cout << mp << "\n";
}

int32_t main() {
    fastIO();
    
    int t = 1; // cin >> t;
    while (t--) solve();
    
    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

bold.cpp: In instantiation of 'std::ostream& operator<<(std::ostream&, std::vector<_Tp>) [with T = std::__cxx11::basic_string<char>; std::ostream = std::basic_ostream<char>]':
bold.cpp:50:13:   required from here
bold.cpp:22:23: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::__cxx11::basic_string<char> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   22 |     for (int i = 0; i < vec.size(); ++i) {
      |                     ~~^~~~~~~~~~~~

• Subtask 1: 50 / 50