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Karel Hrkal • 1 year ago

I think the last function should take the vector by reference, like this:
pub fn single_number(nums: &Vec<i32>) -> i32 { ... }
Without it, it requires (and consumes the) ownership for no reason.

YSKang • 3 years ago

I think the value of a&b (a=F b=T) should be 0 in the truth table.