[Verse 1]
When you need to store your data in a row
Vector's got your back, it's the way to go
Elements lined up, indexed zero through nine
Push and pop with ease, everything's fine
Growing and shrinking as your program flows
Vec's dynamic magic, that's how Rust code grows
[Chorus]
Collections hold your data tight
Vec for lists, HashMap for sight
Push to add, get to retrieve
Rust collections make you believe
Vector, HashMap, memory safe
Collections are your coding space
[Verse 2]
HashMap pairs your keys with values sweet
String to number, now your data's complete
Insert your pairs, then get them back
No more searching through a linear track
Hash function magic finds your spot
Key value storage, forget me not
[Chorus]
Collections hold your data tight
Vec for lists, HashMap for sight
Push to add, get to retrieve
Rust collections make you believe
Vector, HashMap, memory safe
Collections are your coding space
[Bridge]
Vec dot push adds to the end
Vec dot pop removes, my friend
Map dot insert stores the pair
Map dot get finds what's hiding there
Ownership rules still apply here
Borrowing keeps your memory clear
[Verse 3]
When you iterate through your collection
For loop gives you that connection
Each element gets its moment to shine
Whether it's Vec or HashMap time
Mutable borrows when you need to change
Immutable views keep data in range
[Chorus]
Collections hold your data tight
Vec for lists, HashMap for sight
Push to add, get to retrieve
Rust collections make you believe
Vector, HashMap, memory safe
Collections are your coding space
[Outro]
From empty Vec to HashMap full
Collections make your data pull
Together in organized ways
Collections brighten coding days