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fn root_mean_square(vec: Vec<i32>) -> f32 {
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let sum_squares = vec.iter().fold(0, |acc, &x| acc + x.pow(2));
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return ((sum_squares as f32)/(vec.len() as f32)).sqrt();
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}
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fn main() {
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let vec = (1..11).collect();
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println!("The root mean square is: {}", root_mean_square(vec));
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}
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