comp_input

crates.io docs.rs

Input library for competitive programming.

Example: weighted graph as edge list

```rust,no_run

[macro_use]

extern crate comp_input;

fn main() { input! { n, m: usize, edges: [(usize1, usize1, u64); m], } } ```

The variables n, m and edges then exist as local variables in scope.

List of input fragments

| Fragment | Description | |----------|-------------| | u8, u16, u32, u64, usize | Unsigned integer (base 10) | | i8, i16, i32, i64, isize | Signed integer (base 10, optional +/- prefix) | | usize1 | Like usize, but subtract 1 from the result (useful for 1-based input formats) | | char | A single character | | String | A sequence of non-ASCII-whitespace characters | | (T1, T2), (T1, T2, T3), ... | Heterogeneous tuple of other input fragments, read in order | | [<T>; <n: expr>] | n items parsed against T, returned as Vec | | [<T>; const <n>] | n items parsed against T, in an array. n must be compile-time constant |

TODO

• Allow arbitrary parse functions
• Branching
• Loops (e.g. parse until -1)

License

MIT/Apache-2.0