func_code_string: #include <bits/stdc++.h>   using namespace std;   const pair<int, int> Dir[8] = {{0, 1}, {0, -1}, {1, 0},   {-1, 0},                                  {1, 1}, {1, -1}, {-1, -1}, {-1, 1}};   template <typename A, size_t N, typename T>   void Fill(A (&array)[N], const T &val) {     std::fill((T *)array, (T *)(array + N), val);   }   signed main() {     long long n;     scanf( %lld , &n);     long long dp[2] = {1, 2};     long long turn = 1;     while (1) {       long long next = dp[0] + dp[1];       if (next > n) {         break;       }       dp[0] = dp[1];       dp[1] = next;       turn++;     }     printf( %lld n , turn);     return 0;   }   