1 files changed, 20 insertions, 0 deletions
diff --git a/src/bin/p0028.rs b/src/bin/p0028.rs
new file mode 100644
index 0000000..c830ac4
--- /dev/null
+++ b/src/bin/p0028.rs
@@ -0,0 +1,20 @@
+impl Solution {
+    pub fn str_str(haystack: String, needle: String) -> i32 {
+        if needle.len() > haystack.len() { return -1; }
+        for i in 0..haystack.len() - needle.len()+1 {
+            let mut failed = false;
+            for j in 0..needle.len() {
+                if haystack.as_bytes()[i+j] != needle.as_bytes()[j] {
+                    failed = true;
+                    break;
+                }
+            }
+            if !failed { return i as i32; }
+        }
+        -1
+    }
+}
+struct Solution { }
+fn main() {
+    println!("{}", Solution::str_str("abaaa".to_string(), "abb".to_string()));
+}
+\ No newline at end of file