Sum 1 to N

Use a for loop to add up all the numbers from 1 to 100 and print the result.

Expected output:

Sum: 5050

Hints:

• Create a let mut sum = 0; variable before the loop
• Use for i in 1..=100 to loop through all the numbers
• Add each number to sum inside the loop
• Print the result after the loop with println!("Sum: {}", sum);