problem 1

.gitignore

@@ -10,3 +10,11 @@ Cargo.lock
 # These are backup files generated by rustfmt
 **/*.rs.bk
 
+
+
+#Added by cargo
+#
+#already existing elements are commented out
+
+/target
+#**/*.rs.bk

Cargo.toml

@@ -0,0 +1,9 @@
+[package]
+name = "euler"
+version = "0.1.0"
+authors = ["Hazel Levine <rose.hazel@protonmail.ch>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

src/bin/prob1.rs

@@ -0,0 +1,20 @@
+// Problem 1:
+// If we list all the natural numbers below 10 that are multiples of 3 or 5, we
+// get 3, 5, 6 and 9. The sum of these multiples is 23.
+//
+// Find the sum of all the multiples of 3 or 5 below 1000.
+
+fn compute(n: i32) -> i32 {
+    (0..n).filter(|x| x % 3 == 0 || x % 5 == 0).sum()
+}
+
+fn main() {
+    println!("the sum of all multiples of 3 or 5 below 1000 is: {}",
+             compute(1000));
+}
+
+#[test]
+fn test() {
+    assert_eq!(23, compute(10));
+    assert_eq!(233168, compute(1000));
+}

src/main.rs

@@ -0,0 +1,3 @@
+fn main() {
+    println!("haha yes, very good code good yes");
+}