Submission #6124266

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;
int main() {
    int H, W;
    cin >> H >> W;
    vector<vector<char>> s(H, vector<char>(W));
    for(int i = 0; i < H; i++) {
        for(int j = 0; j < W; j++) {
            cin >> s.at(i).at(j);
        }
    }
    vector<int> dx = {1, 0, -1, 0};
    vector<int> dy = {0, 1, 0, -1};
    
    string ans = "Yes";
    for(int i = 0; i < H; i++) {
        for(int j = 0; j < W; j++) {
            if(s.at(i).at(j)=='#') {
                bool ok = false;
                for(int k = 0; k < 4; k++) {
                    int y = i+dy.at(k);
                    int x = j+dx.at(k);
                    if(y<0||y>=H||x<0||x>=W) continue;
                    if(s.at(y).at(x)=='#') ok = true;
                }
                if(!ok) ans = "No";
            }
        }
    }
    
    cout << ans << endl;
}

Submission Info

Judge Result