20240130 Finished

This commit is contained in:
jackfiled 2024-01-30 11:01:40 +08:00
parent 50062fe55e
commit 916b49fc26
2 changed files with 49 additions and 1 deletions

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@ -32,3 +32,4 @@ mod p2846_minimum_edge_weight_equilibrium_queries_in_a_tree;
mod p2861_maximum_number_of_alloys;
mod p365_water_and_jug_problem;
mod p514_freedom_trail;
mod p2808_minimum_seconds_to_equalize_a_circular_array;

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@ -0,0 +1,47 @@
/**
* [2808] Minimum Seconds to Equalize a Circular Array
*/
pub struct Solution {}
// submission codes start here
use std::collections::HashMap;
impl Solution {
pub fn minimum_seconds(nums: Vec<i32>) -> i32 {
let mut map = HashMap::new();
for (index, num) in nums.iter().enumerate() {
let entry = map.entry(*num).or_insert(Vec::new());
entry.push(index);
}
let mut result = i32::MAX;
for (_, pos) in map {
let mut max_distance = pos[0] + nums.len() - pos.last().unwrap();
for i in 1..pos.len() {
max_distance = max_distance.max(pos[i] - pos[i - 1]);
}
result = result.min(max_distance as i32 / 2);
}
result
}
}
// submission codes end
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_2808() {
assert_eq!(Solution::minimum_seconds(vec![1,2,1,2]), 1);
assert_eq!(Solution::minimum_seconds(vec![2,1,3,3,2]), 2);
}
}