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Fix the code in min_path_sum

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krahets
2023-10-14 03:25:11 +08:00
parent 3df5c36370
commit a8c624fa5a
12 changed files with 48 additions and 48 deletions
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8
codes/rust/chapter_dynamic_programming/min_path_sum.rs
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@@ -15,8 +15,8 @@ fn min_path_sum_dfs(grid: &Vec<Vec<i32>>, i: i32, j: i32) -> i32 {
return i32::MAX;
}
// 计算从左上角到 (i-1, j) 和 (i, j-1) 的最小路径代价
let left = min_path_sum_dfs(grid, i - 1, j);
let up = min_path_sum_dfs(grid, i, j - 1);
let up = min_path_sum_dfs(grid, i - 1, j);
let left = min_path_sum_dfs(grid, i, j - 1);
// 返回从左上角到 (i, j) 的最小路径代价
std::cmp::min(left, up) + grid[i as usize][j as usize]
}
@@ -36,8 +36,8 @@ fn min_path_sum_dfs_mem(grid: &Vec<Vec<i32>>, mem: &mut Vec<Vec<i32>>, i: i32, j
return mem[i as usize][j as usize];
}
// 左边和上边单元格的最小路径代价
let left = min_path_sum_dfs_mem(grid, mem, i - 1, j);
let up = min_path_sum_dfs_mem(grid, mem, i, j - 1);
let up = min_path_sum_dfs_mem(grid, mem, i - 1, j);
let left = min_path_sum_dfs_mem(grid, mem, i, j - 1);
// 记录并返回左上角到 (i, j) 的最小路径代价
mem[i as usize][j as usize] = std::cmp::min(left, up) + grid[i as usize][j as usize];
mem[i as usize][j as usize]