Solution.rs

impl Solution {
    pub fn minimum_total(mut triangle: Vec<Vec<i32>>) -> i32 {
        let n = triangle.len();
        for i in (0..n - 1).rev() {
            for j in 0..i + 1 {
                triangle[i][j] += triangle[i + 1][j].min(triangle[i + 1][j + 1]);
            }
        }
        triangle[0][0]
    }
}