#include
using namespace std;
const int SIZE = 20;
int data[SIZE];
int n, i, h, ans;
void merge( ) {
data[h - 1] = data[h - 1] + data[h];
h--;
ans++;
}
int main( ) {
cin >> n;
h = 1;
data[h] = 1;
ans = 0;
for (i = 2; i <= n; i++) {
h++;
data[h] = 1;
while (h > 1 && data[h] == data[h - 1])
merge( );
}
cout << ans << endl;
}
(1) 输入:8 输出:______1___ (2) 输入:2012 输出:____2_____