public/subjects/minesweeper

minesweeper

Create a function that takes a minesweeper board as an array of strings and return the board solved.

Minesweeper is a very old game where some mines are placed in a board and you should calculate how many mines are touching every free field and write the count in the respective place.

We will only test your function with empty and valid boards.

Instructions

Expected Function

pub fn solve_board(minefield: &[&str]) -> Vec<String> {
}

Usage

Here is a possible program to test your function,

fn main() {
    println!("{:?}", solve_board(&[]));
    println!("{:?}", solve_board(&[""]));
    println!("{:?}", solve_board(&["***"]));
    println!("{:#?}", solve_board(&["   ", " * ", "   ",]));
    println!("{:#?}", solve_board(&["*  ", "   ", "  *",]));
}

And its output:

$ cargo run
[]
[""]
["***"]
[
    "111",
    "1*1",
    "111",
]
[
    "*1 ",
    "121",
    " 1*",
]
$