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    "https://leetcode.com/problems/rotate-string\n",
    "\n",
    "\n",
    "\n",
    "Runtime: 0 ms, faster than 100.00% of Rust online submissions for Rotate String.\n",
    "Memory Usage: 2 MB, less than 100.00% of Rust online submissions for Rotate String.\n",
    "\n",
    "\n",
    "\n",
    "```rust\n",
    "pub struct Solution {}\n",
    "\n",
    "impl Solution {\n",
    "    pub fn rotate_string(a: String, b: String) -> bool {\n",
    "        if a.eq(\"\") && b.eq(\"\") {\n",
    "            return true;\n",
    "        }\n",
    "        if a.len() != b.len() {\n",
    "            return false;\n",
    "        }\n",
    "\n",
    "        let mut A = a.clone();\n",
    "        for i in 0..a.len() {\n",
    "            A = [&A[1..A.len()], &A[0..1]].concat();\n",
    "            //println!(\"{}\", A.to_string());\n",
    "            //println!(\"{}\", b.to_string());\n",
    "            //println!(\"\");\n",
    "            if A == b {\n",
    "                return true;\n",
    "            }\n",
    "        }\n",
    "        return false;\n",
    "    }\n",
    "}\n",
    "\n",
    "fn main() {\n",
    "    let r: bool = Solution::rotate_string(String::from(\"abc\"), String::from(\"bca\"));\n",
    "    println!(\"{}\", r as i32);\n",
    "}\n",
    "\n",
    "```\n",
    "\n",
    "\n",
    "Spent 3 hours. (rust is hard for beginners\n",
    "\n",
    "One shoot"
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