rust nesting loops

In Rust, you can nest loops by placing one loop inside another loop. This allows you to iterate over multiple levels of data or perform repetitive tasks in a structured manner. To nest loops, you simply write one loop statement inside the body of another loop statement.

Here's an example of nesting loops in Rust:

fn main() {
    for i in 1..=3 {
        for j in 1..=3 {
            println!("i: {}, j: {}", i, j);
        }
    }
}

In this example, we have an outer loop that iterates from 1 to 3, and an inner loop that also iterates from 1 to 3. The println! statement inside the inner loop will be executed 9 times, as it will run for each combination of i and j values.

By nesting loops, you can perform operations on each element of a multi-dimensional array, traverse a grid, or implement complex algorithms that require iterating over nested data structures.

Keep in mind that nesting loops can lead to code that is hard to read and understand, especially if the depth of nesting is high. So, it's generally a good practice to keep the nesting level to a minimum and consider alternative approaches if the code becomes too complex.

That's how you can nest loops in Rust! Let me know if you have any further questions.