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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/zig/chapter_dynamic_programming/min_path_sum.zig
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@@ -15,8 +15,8 @@ fn minPathSumDFS(grid: anytype, i: i32, j: i32) i32 {
return std.math.maxInt(i32);
}
// 计算从左上角到 (i-1, j) 和 (i, j-1) 的最小路径代价
var left = minPathSumDFS(grid, i - 1, j);
var up = minPathSumDFS(grid, i, j - 1);
var up = minPathSumDFS(grid, i - 1, j);
var left = minPathSumDFS(grid, i, j - 1);
// 返回从左上角到 (i, j) 的最小路径代价
return @min(left, up) + grid[@as(usize, @intCast(i))][@as(usize, @intCast(j))];
}
@@ -36,8 +36,8 @@ fn minPathSumDFSMem(grid: anytype, mem: anytype, i: i32, j: i32) i32 {
return mem[@as(usize, @intCast(i))][@as(usize, @intCast(j))];
}
// 计算从左上角到 (i-1, j) 和 (i, j-1) 的最小路径代价
var left = minPathSumDFSMem(grid, mem, i - 1, j);
var up = minPathSumDFSMem(grid, mem, i, j - 1);
var up = minPathSumDFSMem(grid, mem, i - 1, j);
var left = minPathSumDFSMem(grid, mem, i, j - 1);
// 返回从左上角到 (i, j) 的最小路径代价
// 记录并返回左上角到 (i, j) 的最小路径代价
mem[@as(usize, @intCast(i))][@as(usize, @intCast(j))] = @min(left, up) + grid[@as(usize, @intCast(i))][@as(usize, @intCast(j))];