| 시간 제한 | 메모리 제한 | 제출 | 정답 | 맞힌 사람 | 정답 비율 |
|---|---|---|---|---|---|
| 1 초 | 512 MB | 193 | 168 | 150 | 86.705% |
In addition to the usual age-related health problems such as first signs of RSI1 and physical injuries that accumulate faster than they heal, Daniel’s eyesight has suddenly worsened.
Paula wrote him a letter, but he can’t read it without glasses. She needs to bold the text, so Daniel can read it.
The letter can be represented as a matrix consisting of characters '.' and '#'. To bold it, Paula will replace each '#' in the original letter with a 2 × 2 square of '#' in the down-right direction.
1Repetitive strain injury. Never ignore the pain caused by typing. Ergonomic aids and chairs are generally always worth it. Sit straight. “A gram of prevention is worth a kilo of cure.”
The first line contains integers n and m (2 ≤ n, m ≤ 100), the dimensions of the letter.
Each of the following n lines contains m characters '.' and '#' that represent Paula’s letter.
The last row and column won’t contain any '#'.
Output n lines containing m characters '.' and '#', representing the bold letter.
4 4 .... .#.. .... ....
.... .##. .##. ....
7 7 ....... .####.. .#...#. .#...#. .#...#. .####.. .......
....... .#####. .###### .##..## .##..## .###### .#####.
9 7 ....... .####.. .#...#. .#...#. .####.. .#..... .#..... .#..... .......
....... .#####. .###### .##..## .###### .#####. .##.... .##.... .##....