Wrote program for Day 5

Week-01/Day-05_Pair-Of-Socks/pair_of_socks/Cargo.toml

@@ -0,0 +1,6 @@
+[package]
+name = "pair_of_socks"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]

Week-01/Day-05_Pair-Of-Socks/pair_of_socks/src/lib.rs

@@ -0,0 +1,12 @@
+pub fn sock_pairs(socks: &str) -> usize {
+    let mut sock_pairs = 0;
+    let mut socks = String::from(socks);
+
+    while !socks.is_empty() {
+        let full_length = socks.len();
+        socks = socks.replace(socks.chars().next().unwrap(), "");
+        sock_pairs += (full_length - socks.len()) / 2;
+    }
+
+    sock_pairs
+}

Week-01/Day-05_Pair-Of-Socks/pair_of_socks/tests/examples_sockpairs.rs

@@ -0,0 +1,16 @@
+use pair_of_socks::sock_pairs;
+
+#[test]
+fn one_sock_pair() {
+    assert_eq!(sock_pairs("AA"), 1);
+}
+
+#[test]
+fn two_sock_pair() {
+    assert_eq!(sock_pairs("ABABC"), 2);
+}
+
+#[test]
+fn four_sock_pair() {
+    assert_eq!(sock_pairs("CABBACCC"), 4);
+}