Data commit

Task/Evaluate-binomial-coefficients/Rust/evaluate-binomial-coefficients-1.rust

@@ -0,0 +1,19 @@
+fn fact(n:u32) -> u64 {
+  let mut f:u64 = n as u64;
+  for i in 2..n {
+    f *= i as u64;
+  }
+  return f;
+}
+
+fn choose(n: u32, k: u32)  -> u64 {
+   let mut num:u64 = n as u64;
+   for i in 1..k {
+     num *= (n-i) as u64;
+   }
+   return num / fact(k);
+}
+
+fn main() {
+  println!("{}", choose(5,3));
+}

Task/Evaluate-binomial-coefficients/Rust/evaluate-binomial-coefficients-2.rust

@@ -0,0 +1,4 @@
+fn choose(n:u64,k:u64)->u64 {
+   let factorial=|x| (1..=x).fold(1, |a, x| a * x);
+   factorial(n) / factorial(k) / factorial(n - k)
+}