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45 lines
840 B
45 lines
840 B
4 years ago
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## matrix_display
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### Instructions
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Use the Matrix struct given in the [expected struct](#expected-functions-and-struct) and implement the `std::fmt::Display` trait so it prints the matrix like in the [usage](#usage).
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You will also have to implement the associated function `new` that creates a matrix from a slice of slices.
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### Expected Functions and Struct
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```rust
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pub struct Matrix(pub Vec<Vec<i32>>);
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pub fn new(slice: &[&[i32]]) -> Self {
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}
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use std::fmt;
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impl fmt::Display for Matrix {
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}
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```
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### Usage
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Here is a possible program to test your function
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```rust
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use matrix_display::*;
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fn main() {
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let matrix = Matrix::new(&[&[1, 2, 3], &[4, 5, 6], &[7, 8, 9]]);
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println!("{}", matrix);
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}
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```
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And it's output:
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```console
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student@ubuntu:~/[[ROOT]]/test$ cargo run
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(1 2 3)
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(4 5 6)
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(7 8 9)
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student@ubuntu:~/[[ROOT]]/test$
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```
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