func_code_string: #include <bits/stdc++.h>   using namespace std;   const double EPS = 1e-9;   const double pi = acos(-1);   const long long int INF = 1e18;   const int inf = 1e9;   const int MOD = 1e9 + 7;   const int nax = 1000000 + 10;   int n, arr[nax];   int main() {     ios::sync_with_stdio(0);     cin >> n;     if (n % 10 == 0) {       cout << n;       return 0;     }     if (n <= 5)       cout << 0;     else {       int div = (n + 10 - 1) / 10;       int ans = 10 * div;       int rem = (n % 10);       if (rem <= 5) ans -= 10;       cout << ans;     }     return 0;   }   