func_code_string: #include <bits/stdc++.h>   #pragma GCC optimize(2)   using namespace std;   const int INF = 1e9 + 7;   const int mod = 1e9 + 9;   const int maxn = 3e5 + 7;   const int lim = 800667;   int tmp;   void dfs(int a, int b) {     if (b == 0) {       tmp = INF;       return;     } else if (b == 1) {       tmp += a - 1;       return;     }     tmp += a / b;     dfs(b, a % b);   }   int main() {     int n;     scanf( %d , &n);     int res = n - 1;     for (int i = 1; i < n; ++i) {       tmp = 0;       dfs(n, i);       res = min(res, tmp);     }     printf( %d n , res);     return 0;   }   