error[E0412]: cannot find type `Solution` in this scope
--> prog.rs:3:6
|
3 | impl Solution {
| ^^^^^^^^ not found in this scope
error[E0601]: `main` function not found in crate `prog`
|
= note: consider adding a `main` function to `prog.rs`
error: aborting due to 2 previous errors
Some errors occurred: E0412, E0601.
For more information about an error, try `rustc --explain E0412`.