46 lines
1.1 KiB
Rust
46 lines
1.1 KiB
Rust
/**
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* [2145] Count the Hidden Sequences
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*/
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pub struct Solution {}
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// submission codes start here
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impl Solution {
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pub fn number_of_arrays(differences: Vec<i32>, lower: i32, upper: i32) -> i32 {
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let mut min_value = 0i64;
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let mut max_value = 0i64;
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let mut last_value = 0i64;
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for i in differences.into_iter() {
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let value = last_value + i as i64;
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min_value = min_value.min(value);
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max_value = max_value.max(value);
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last_value = value;
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}
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let range = max_value - min_value;
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let result = (upper - lower + 1) as i64 - range;
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if result > 0 {
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result as i32
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} else {
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0
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}
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}
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}
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// submission codes end
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn test_2145() {
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assert_eq!(60, Solution::number_of_arrays(vec![-40], -46, 53));
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assert_eq!(2, Solution::number_of_arrays(vec![1, -3, 4], 1, 6));
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assert_eq!(4, Solution::number_of_arrays(vec![3, -4, 5, 1, -2], -4, 5));
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assert_eq!(0, Solution::number_of_arrays(vec![4, -7, 2], 3, 6));
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}
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}
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