Initial commitHEADmain

2 files changed, 38 insertions, 0 deletions

diff --git a/longest-common-prefix/Cargo.toml b/longest-common-prefix/Cargo.toml
new file mode 100644
index 0000000..91d0dc9
--- /dev/null
+++ b/longest-common-prefix/Cargo.toml
@@ -0,0 +1,8 @@
+[package]
+name = "longest-common-prefix"
+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/longest-common-prefix/src/main.rs b/longest-common-prefix/src/main.rs
new file mode 100644
index 0000000..9e573c1
--- /dev/null
+++ b/longest-common-prefix/src/main.rs
@@ -0,0 +1,30 @@
+fn main() {
+    println!("Hello, world!");
+    let tests = [
+        (vec!["flower","flow","flight"], "fl"),
+        (vec!["dog","racecar","car"], "")
+    ];
+
+    for test in tests {
+        println!("{:?} is {} should be {}", test.0,
+                 Solution::longest_common_prefix(test.0.iter().map(|s| s.to_string()).collect()),
+                 test.1);
+    }
+}
+
+struct Solution {}
+impl Solution {
+    pub fn longest_common_prefix(strs: Vec<String>) -> String {
+        let mut index = 0;
+        let mut c = String::new();
+        loop {
+            for s in strs {
+                let prefix = s.chars().nth(index);
+                if prefix.is_none() {return c;}
+            }
+            break;
+        }
+        "".to_string()
+    }
+}
+