19 lines
337 B
Rust

fn main() {
println!("Hello, world!");
}
struct Solution;
impl Solution {
pub fn unique_paths(m: i32, n: i32) -> i32 {
let mut grid = vec![1; n as usize];
for _ in 1..m {
for i in 1..n as usize {
grid[i] += grid[i - 1];
}
}
*grid.last().unwrap()
}
}