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Merged
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Aug 7, 2025
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[pull] main from doocs:main #38

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75 changes: 73 additions & 2 deletions solution/0800-0899/0808.Soup Servings/README.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -157,7 +157,7 @@ class Solution {
public:
double soupServings(int n) {
double f[200][200] = {0.0};
function<double(int, int)> dfs = [&](int i, int j) -> double {
auto dfs = [&](this auto&& dfs, int i, int j) -> double {
if (i <= 0 && j <= 0) return 0.5;
if (i <= 0) return 1;
if (j <= 0) return 0;
Expand Down Expand Up @@ -205,7 +205,7 @@ func soupServings(n int) float64 {

```ts
function soupServings(n: number): number {
const f = new Array(200).fill(0).map(() => new Array(200).fill(-1));
const f = Array.from({ length: 200 }, () => Array(200).fill(-1));
const dfs = (i: number, j: number): number => {
if (i <= 0 && j <= 0) {
return 0.5;
Expand All @@ -227,6 +227,77 @@ function soupServings(n: number): number {
}
```

#### Rust

```rust
impl Solution {
pub fn soup_servings(n: i32) -> f64 {
if n > 4800 {
return 1.0;
}
Self::dfs((n + 24) / 25, (n + 24) / 25)
}

fn dfs(i: i32, j: i32) -> f64 {
static mut F: [[f64; 200]; 200] = [[0.0; 200]; 200];

unsafe {
if i <= 0 && j <= 0 {
return 0.5;
}
if i <= 0 {
return 1.0;
}
if j <= 0 {
return 0.0;
}
if F[i as usize][j as usize] > 0.0 {
return F[i as usize][j as usize];
}

let ans = 0.25 * (Self::dfs(i - 4, j) + Self::dfs(i - 3, j - 1) + Self::dfs(i - 2, j - 2) + Self::dfs(i - 1, j - 3));
F[i as usize][j as usize] = ans;
ans
}
}
}
```

#### C#

```cs
public class Solution {
private double[,] f = new double[200, 200];

public double SoupServings(int n) {
if (n > 4800) {
return 1.0;
}

return Dfs((n + 24) / 25, (n + 24) / 25);
}

private double Dfs(int i, int j) {
if (i <= 0 && j <= 0) {
return 0.5;
}
if (i <= 0) {
return 1.0;
}
if (j <= 0) {
return 0.0;
}
if (f[i, j] > 0) {
return f[i, j];
}

double ans = 0.25 * (Dfs(i - 4, j) + Dfs(i - 3, j - 1) + Dfs(i - 2, j - 2) + Dfs(i - 1, j - 3));
f[i, j] = ans;
return ans;
}
}
```

<!-- tabs:end -->

<!-- solution:end -->
Expand Down
75 changes: 73 additions & 2 deletions solution/0800-0899/0808.Soup Servings/README_EN.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -155,7 +155,7 @@ class Solution {
public:
double soupServings(int n) {
double f[200][200] = {0.0};
function<double(int, int)> dfs = [&](int i, int j) -> double {
auto dfs = [&](this auto&& dfs, int i, int j) -> double {
if (i <= 0 && j <= 0) return 0.5;
if (i <= 0) return 1;
if (j <= 0) return 0;
Expand Down Expand Up @@ -203,7 +203,7 @@ func soupServings(n int) float64 {

```ts
function soupServings(n: number): number {
const f = new Array(200).fill(0).map(() => new Array(200).fill(-1));
const f = Array.from({ length: 200 }, () => Array(200).fill(-1));
const dfs = (i: number, j: number): number => {
if (i <= 0 && j <= 0) {
return 0.5;
Expand All @@ -225,6 +225,77 @@ function soupServings(n: number): number {
}
```

#### Rust

```rust
impl Solution {
pub fn soup_servings(n: i32) -> f64 {
if n > 4800 {
return 1.0;
}
Self::dfs((n + 24) / 25, (n + 24) / 25)
}

fn dfs(i: i32, j: i32) -> f64 {
static mut F: [[f64; 200]; 200] = [[0.0; 200]; 200];

unsafe {
if i <= 0 && j <= 0 {
return 0.5;
}
if i <= 0 {
return 1.0;
}
if j <= 0 {
return 0.0;
}
if F[i as usize][j as usize] > 0.0 {
return F[i as usize][j as usize];
}

let ans = 0.25 * (Self::dfs(i - 4, j) + Self::dfs(i - 3, j - 1) + Self::dfs(i - 2, j - 2) + Self::dfs(i - 1, j - 3));
F[i as usize][j as usize] = ans;
ans
}
}
}
```

#### C#

```cs
public class Solution {
private double[,] f = new double[200, 200];

public double SoupServings(int n) {
if (n > 4800) {
return 1.0;
}

return Dfs((n + 24) / 25, (n + 24) / 25);
}

private double Dfs(int i, int j) {
if (i <= 0 && j <= 0) {
return 0.5;
}
if (i <= 0) {
return 1.0;
}
if (j <= 0) {
return 0.0;
}
if (f[i, j] > 0) {
return f[i, j];
}

double ans = 0.25 * (Dfs(i - 4, j) + Dfs(i - 3, j - 1) + Dfs(i - 2, j - 2) + Dfs(i - 1, j - 3));
f[i, j] = ans;
return ans;
}
}
```

<!-- tabs:end -->

<!-- solution:end -->
Expand Down
2 changes: 1 addition & 1 deletion solution/0800-0899/0808.Soup Servings/Solution.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@ class Solution {
public:
double soupServings(int n) {
double f[200][200] = {0.0};
function<double(int, int)> dfs = [&](int i, int j) -> double {
auto dfs = [&](this auto&& dfs, int i, int j) -> double {
if (i <= 0 && j <= 0) return 0.5;
if (i <= 0) return 1;
if (j <= 0) return 0;
Expand Down
30 changes: 30 additions & 0 deletions solution/0800-0899/0808.Soup Servings/Solution.cs
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,30 @@
public class Solution {
private double[,] f = new double[200, 200];

public double SoupServings(int n) {
if (n > 4800) {
return 1.0;
}

return Dfs((n + 24) / 25, (n + 24) / 25);
}

private double Dfs(int i, int j) {
if (i <= 0 && j <= 0) {
return 0.5;
}
if (i <= 0) {
return 1.0;
}
if (j <= 0) {
return 0.0;
}
if (f[i, j] > 0) {
return f[i, j];
}

double ans = 0.25 * (Dfs(i - 4, j) + Dfs(i - 3, j - 1) + Dfs(i - 2, j - 2) + Dfs(i - 1, j - 3));
f[i, j] = ans;
return ans;
}
}
35 changes: 35 additions & 0 deletions solution/0800-0899/0808.Soup Servings/Solution.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,35 @@
impl Solution {
pub fn soup_servings(n: i32) -> f64 {
if n > 4800 {
return 1.0;
}
Self::dfs((n + 24) / 25, (n + 24) / 25)
}

fn dfs(i: i32, j: i32) -> f64 {
static mut F: [[f64; 200]; 200] = [[0.0; 200]; 200];

unsafe {
if i <= 0 && j <= 0 {
return 0.5;
}
if i <= 0 {
return 1.0;
}
if j <= 0 {
return 0.0;
}
if F[i as usize][j as usize] > 0.0 {
return F[i as usize][j as usize];
}

let ans = 0.25
* (Self::dfs(i - 4, j)
+ Self::dfs(i - 3, j - 1)
+ Self::dfs(i - 2, j - 2)
+ Self::dfs(i - 1, j - 3));
F[i as usize][j as usize] = ans;
ans
}
}
}
2 changes: 1 addition & 1 deletion solution/0800-0899/0808.Soup Servings/Solution.ts
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
function soupServings(n: number): number {
const f = new Array(200).fill(0).map(() => new Array(200).fill(-1));
const f = Array.from({ length: 200 }, () => Array(200).fill(-1));
const dfs = (i: number, j: number): number => {
if (i <= 0 && j <= 0) {
return 0.5;
Expand Down
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