func_code_string: #include <bits/stdc++.h>   using namespace std;   vector<int> z;   vector<int> pr;   vector<vector<int>> ans;   int s, f;   long long pow(long long n, long long s) {     if (s == 0)       return 1;     else {       if (s % 2 == 1) {         return (n * (pow(n, s - 1))) % 1000000007;       }       if (s % 2 == 0) {         long long k = (pow(n, s / 2)) % 1000000007;         return (k * k) % 1000000007;       }     }   }   void prfix(string s) {     for (int i = 1; i < s.size(); i++) {       pr[i] = pr[i - 1];       while (pr[i] > 0 && s[i] != s[pr[i]]) {         pr[i] = pr[pr[i] - 1];       }       if (s[i] == s[pr[i]]) pr[i]++;     }   }   void zet(string s) {     int l = 0, r = 0;     for (int i = 1; i < s.size(); i++) {       if (i <= r) {         z[i] = min(z[i - l], r - i + 1);       }       for (; z[i] + i < s.size() && s[z[i] + i] == s[z[i]]; z[i]++)         ;       if (i + z[i] - 1 >= r) {         l = i;         r = i + z[i] - 1;       }     }   }   int main() {     ios_base::sync_with_stdio(false);     cin.tie(0);     cout.tie(0);     long double R, x1, y1, x2, y2;     cin >> R >> x1 >> y1 >> x2 >> y2;     if (sqrt((x2 - x1) * (x2 - x1) + (y2 - y1) * (y2 - y1)) >= R) {       cout << x1 <<     << y1 <<     << R;       return 0;     }     if (x1 == x2 && y1 == y2) {       long double y3 = y1 + R / 2;       cout << x1 <<     << y3 <<     << R / 2;       return 0;     }     long double c = sqrt((x2 - x1) * (x2 - x1) + (y2 - y1) * (y2 - y1));     long double x4 = (x1 - x2) * (R + c) / 2 / c + x2;     long double y4 = (y1 - y2) * (R + c) / 2 / c + y2;     cout.precision(10);     cout << fixed << x4 <<     << y4 <<     << (R + c) / 2;   }   