aboutsummaryrefslogtreecommitdiff
path: root/other/min_one_bit_0.rs
diff options
context:
space:
mode:
Diffstat (limited to 'other/min_one_bit_0.rs')
-rw-r--r--other/min_one_bit_0.rs29
1 files changed, 29 insertions, 0 deletions
diff --git a/other/min_one_bit_0.rs b/other/min_one_bit_0.rs
new file mode 100644
index 0000000..1b52362
--- /dev/null
+++ b/other/min_one_bit_0.rs
@@ -0,0 +1,29 @@
+struct Solution;
+
+impl Solution {
+ pub fn minimum_one_bit_operations(n: i32) -> i32 {
+ if n <= 1 {
+ return n;
+ }
+ let mut max = 1usize;
+ while max < n as usize {
+ max += max;
+ }
+ let mut dp = vec![0; max as usize + 1];
+ dp[1] = 1;
+ let (mut start, mut _i) = (2usize, 1);
+ while start < max as usize {
+ for i in 0..start / 2 {
+ dp[start + i] = dp[start / 2 + i] + start;
+ dp[start * 3 / 2 + i] = dp[i] + start;
+ }
+ start *= 2;
+ }
+ dp[max] = max * 2 - 1;
+ dp[n as usize] as i32
+ }
+}
+
+fn main() {
+ print!("{}", Solution::minimum_one_bit_operations(39769175));
+}