Initial commitHEADmain

2 files changed, 37 insertions, 0 deletions

diff --git a/number-of-different-integers-in-a-string/Cargo.toml b/number-of-different-integers-in-a-string/Cargo.toml
new file mode 100644
index 0000000..aca88ce
--- /dev/null
+++ b/number-of-different-integers-in-a-string/Cargo.toml
@@ -0,0 +1,8 @@
+[package]
+name = "number-of-different-integers-in-a-string"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
diff --git a/number-of-different-integers-in-a-string/src/main.rs b/number-of-different-integers-in-a-string/src/main.rs
new file mode 100644
index 0000000..5a8256e
--- /dev/null
+++ b/number-of-different-integers-in-a-string/src/main.rs
@@ -0,0 +1,29 @@
+fn main() {
+    println!("Hello, world!");
+    let tests = [
+        ("a123bc34d8ef34", 3),
+        ("leet1234code234", 2),
+        ("a1b01c001", 1),
+        ("035985750011523523129774573439111590559325a1554234973", 2)
+    ];
+    for test in tests {
+        println!("{:?} is {} should be {}", test.0,
+                 Solution::num_different_integers(test.0.to_string()), test.1);
+    }
+}
+
+struct Solution;
+
+use std::collections::HashSet;
+
+impl Solution {
+    pub fn num_different_integers(word: String) -> i32 {
+        let result = unsafe { word.as_bytes() }.split(u8::is_ascii_alphabetic)
+            .filter(|x| !x.is_empty())
+                .map(|mut x| {while x.starts_with(b"0") {x = x.strip_prefix(b"0").unwrap(); } x})
+                // .map(|x| x.iter().rev().enumerate().fold(0, |acc, (i,&v)| acc + (v as u32 -48) * 10_u32.pow(i as u32)))
+                .collect::<HashSet<&[u8]>>();
+        println!("{result:?}");
+        result.len() as i32
+    }
+}