题解 | #小招喵跑步#
小招喵跑步
https://www.nowcoder.com/practice/1177e9bd1b5e4e00bd39ca4ea9e4e216
#include <iostream>
#include <cmath>
using namespace std;
int main()
{
int n;
cin >> n;
if (n == 0) cout << 0 << endl;
else {
n = abs(n);
int dp[n + 1];
dp[0] = 0;
dp[1] = 1;
for(int i=2;i<=n;i++){
if(i % 2 == 0)
dp[i] = dp[i / 2] + 1;
else
dp[i] = min(dp[i-1], dp[(i + 1) / 2] + 1) + 1;
}
cout << dp[n] << endl;
}
return 0;
}