From 21c9f44168394e08338fd470b5f49b1fd235986f Mon Sep 17 00:00:00 2001
From: apogeeoak <59737221+apogeeoak@users.noreply.github.com>
Date: Sat, 24 Apr 2021 13:15:34 -0400
Subject: [PATCH 1/2] feat(intro): Add intro section.

---
 exercises/intro/README.md         |  8 ++++++++
 exercises/intro/intro1.rs         | 19 +++++++++++++++++++
 exercises/intro/intro2.rs         |  9 +++++++++
 exercises/variables/variables1.rs |  8 ++------
 info.toml                         | 16 ++++++++++++++++
 5 files changed, 54 insertions(+), 6 deletions(-)
 create mode 100644 exercises/intro/README.md
 create mode 100644 exercises/intro/intro1.rs
 create mode 100644 exercises/intro/intro2.rs

diff --git a/exercises/intro/README.md b/exercises/intro/README.md
new file mode 100644
index 0000000000..d32e4a8bf2
--- /dev/null
+++ b/exercises/intro/README.md
@@ -0,0 +1,8 @@
+# Intro
+
+Rust uses the `print!` and `println!` macros to print text to the console.
+
+## Further information
+
+- [Hello World](https://doc.rust-lang.org/rust-by-example/hello.html)
+- [Formatted print](https://doc.rust-lang.org/rust-by-example/hello/print.html)
diff --git a/exercises/intro/intro1.rs b/exercises/intro/intro1.rs
new file mode 100644
index 0000000000..83a78e68ff
--- /dev/null
+++ b/exercises/intro/intro1.rs
@@ -0,0 +1,19 @@
+// intro1.rs
+// About this `I AM NOT DONE` thing:
+// We sometimes encourage you to keep trying things on a given exercise, even
+// after you already figured it out. If you got everything working and feel
+// ready for the next exercise, remove the `I AM NOT DONE` comment below.
+// Execute the command `rustlings hint intro1` for a hint.
+
+// I AM NOT DONE
+
+fn main() {
+    println!("Hello and");
+    println!(r#"       welcome to...                      "#);
+    println!(r#"                 _   _ _                  "#);
+    println!(r#"  _ __ _   _ ___| |_| (_)_ __   __ _ ___  "#);
+    println!(r#" | '__| | | / __| __| | | '_ \ / _` / __| "#);
+    println!(r#" | |  | |_| \__ \ |_| | | | | | (_| \__ \ "#);
+    println!(r#" |_|   \__,_|___/\__|_|_|_| |_|\__, |___/ "#);
+    println!(r#"                               |___/      "#);
+}
diff --git a/exercises/intro/intro2.rs b/exercises/intro/intro2.rs
new file mode 100644
index 0000000000..97a073f0e0
--- /dev/null
+++ b/exercises/intro/intro2.rs
@@ -0,0 +1,9 @@
+// intro2.rs
+// Make the code print a greeting to the world.
+// Execute `rustlings hint intro2` for a hint.
+
+// I AM NOT DONE
+
+fn main() {
+    println!("Hello {}!");
+}
diff --git a/exercises/variables/variables1.rs b/exercises/variables/variables1.rs
index 4a3af73c08..d1af831172 100644
--- a/exercises/variables/variables1.rs
+++ b/exercises/variables/variables1.rs
@@ -1,10 +1,6 @@
 // variables1.rs
-// Make me compile! Execute the command `rustlings hint variables1` if you want a hint :)
-
-// About this `I AM NOT DONE` thing:
-// We sometimes encourage you to keep trying things on a given exercise,
-// even after you already figured it out. If you got everything working and
-// feel ready for the next exercise, remove the `I AM NOT DONE` comment below.
+// Make me compile!
+// Execute the command `rustlings hint variables1` if you want a hint :)
 
 // I AM NOT DONE
 
diff --git a/info.toml b/info.toml
index 82e119522d..c56b19fdad 100644
--- a/info.toml
+++ b/info.toml
@@ -1,3 +1,19 @@
+# INTRO
+
+[[exercises]]
+name = "intro1"
+path = "exercises/intro/intro1.rs"
+mode = "compile"
+hint = """
+Remove the I AM NOT DONE comment to move on to the next exercise."""
+
+[[exercises]]
+name = "intro2"
+path = "exercises/intro/intro2.rs"
+mode = "compile"
+hint = """
+Add an argument after the format string."""
+
 # VARIABLES
 
 [[exercises]]

From 9b8de65525a5576b78cf0c8e4098cdd34296338f Mon Sep 17 00:00:00 2001
From: apogeeoak <59737221+apogeeoak@users.noreply.github.com>
Date: Mon, 26 Apr 2021 20:28:17 -0400
Subject: [PATCH 2/2] fix(intro1): Add compiler error explanation.

---
 exercises/intro/intro1.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/exercises/intro/intro1.rs b/exercises/intro/intro1.rs
index 83a78e68ff..1c4582dec7 100644
--- a/exercises/intro/intro1.rs
+++ b/exercises/intro/intro1.rs
@@ -16,4 +16,8 @@ fn main() {
     println!(r#" | |  | |_| \__ \ |_| | | | | | (_| \__ \ "#);
     println!(r#" |_|   \__,_|___/\__|_|_|_| |_|\__, |___/ "#);
     println!(r#"                               |___/      "#);
+    println!();
+    println!("This exercise compiles successfully. The remaining exercises contain a compiler");
+    println!("or logic error. The central concept behind Rustlings is to fix these errors and");
+    println!("solve the exercises. Good luck!");
 }