8 lines
229 B
Rust
8 lines
229 B
Rust
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impl Solution {
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pub fn missing_number(nums: Vec<i32>) -> i32 {
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let expected_sum = (nums.len() * (nums.len() + 1) / 2) as i32;
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nums
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.iter()
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.fold(expected_sum, |acc, x| acc - *x)
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}
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}
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