Submission #74677101

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;
int main(){
  int H, W;
  cin >> H >> W;
  vector<vector<string>> grid(H, vector<string>(W, "."));
  
  for (int i = 0; i < H; i++) {
    for (int j = 0; j < W; j++) {
      if (i == 0 && j < W)  {
        grid.at(i).at(j) = '#';
      }
      if (i == H - 1  &&  j < W) {
        grid.at(i).at(j) = '#';
      }
      if (i < H && j == 0) {
        grid.at(i).at(j) = '#';
      }
      if (i < H && j == W - 1) {
        grid.at(i).at(j) = '#';
      }
    }
  }
  
  for (int i = 0; i < H; i++) {
    for (int j = 0; j < W; j++) {
      cout << grid.at(i).at(j);
    }
    cout << endl;
  }
}

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