20250302 finished.

This commit is contained in:
jackfiled 2025-03-02 11:39:54 +08:00
parent 2dd2c8dd84
commit df8d8adfa2
2 changed files with 53 additions and 0 deletions

View File

@ -512,3 +512,5 @@ mod p1472_design_browser_history;
mod p2353_design_a_food_rating_system;
mod p131_palindrome_partitioning;
mod p132_palindrome_partitioning_ii;

View File

@ -0,0 +1,51 @@
/**
* [132] Palindrome Partitioning II
*/
pub struct Solution {}
// submission codes start here
impl Solution {
pub fn min_cut(s: String) -> i32 {
let s: Vec<char> = s.chars().collect();
let length = s.len();
let mut palindorme = vec![vec![true; length]; length];
for i in (0..length).rev() {
for j in i + 1..length {
palindorme[i][j] = (s[i] == s[j]) && palindorme[i + 1][j - 1]
}
}
let mut dp = vec![i32::MAX; length];
for i in 0..length {
if palindorme[0][i] {
dp[i] = 0;
} else {
for j in 0..i {
if palindorme[j + 1][i] {
dp[i] = dp[i].min(dp[j] + 1);
}
}
}
}
dp[length - 1]
}
}
// submission codes end
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_132() {
assert_eq!(1, Solution::min_cut("aab".to_owned()));
assert_eq!(0, Solution::min_cut("a".to_owned()));
assert_eq!(1, Solution::min_cut("ab".to_owned()));
}
}