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fn vec_loop(input: &[i32]) -> Vec<i32> {
let mut output = Vec::new();
for element in input {
// TODO: Multiply each element in the `input` slice by 2 and push it to
// the `output` vector.
}
output
}
fn main() {
// You can optionally experiment here.
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_vec_loop() {
let input = [2, 4, 6, 8, 10];
let ans = vec_loop(&input);
assert_eq!(ans, [4, 8, 12, 16, 20]);
}
}
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