Language: C++

#pragma GCC optimize("Ofast")
#pragma GCC target("sse,sse2,sse3,sse3,sse4,popcnt,abm,mmx")

#include <bits/stdc++.h>   
#include <stdio.h>    
 
using namespace std;
     
#define F first
#define S second
#define lb lower_bound               
#define ub upper_bound
#define pb push_back
#define pf push_front    
#define ppb pop_back
#define mp make_pair
#define bpp __builtin_popcountll                                                                                        
#define sqr(x) ((x) * (x)) 
#define al 0x3F3F3F3F
#define sz(x) (int)x.size()
#define all(x) x.begin(), x.end()
#define in insert
#define ppf pop_front
#define endl '\n'
#define int long long
 
typedef unsigned long long ull;
typedef long long ll;
typedef long double ld;
typedef pair <int, int> pii;
 
const int mod = (int)1e9 + 7;
const int N = (int)2e5 + 123;
const ll inf = (ll)3e18 + 1;

const double pi = acos (-1.0);
const double eps = 1e-11;
const int dx[] = {0, 0, 1, 0, -1};
const int dy[] = {0, 1, 0, -1, 0};

int n;
ld x[N], y[N];
char d[N];

inline ld f (ld c) {
   ld mx_x = -inf, mx_y = -inf, mn_x = inf, mn_y = inf;
   for (int i = 1; i <= n; i ++) {
      if (d[i] == 'D') {
         ld val = y[i] - c;
         mx_y = max (mx_y, val);
         mn_y = min (mn_y, val);
         mx_x = max (mx_x, x[i]);
         mn_x = min (mn_x, x[i]);
      }  
      if (d[i] == 'U') {
         ld val = y[i] + c;
         mx_y = max (mx_y, val);
         mn_y = min (mn_y, val);
         mx_x = max (mx_x, x[i]);
         mn_x = min (mn_x, x[i]);
      }
      if (d[i] == 'R') {
         mx_x = max (mx_x, x[i] + c);
         mn_x = min (mn_x, x[i] + c);
         mx_y = max (mx_y, y[i]);
         mn_y = min (mn_y, y[i]);
      }
      if (d[i] == 'L') {
         mx_x = max (mx_x, x[i] - c);
         mn_x = min (mn_x, x[i] - c);
         mx_y = max (mx_y, y[i]);
         mn_y = min (mn_y, y[i]);
      }
   }
   mx_x -= mn_x;
   mx_y -= mn_y;
   mx_x *= mx_y;
   return mx_x;
}

inline void boost () {                    
   ios_base :: sync_with_stdio (NULL);
   cin.tie (NULL), cout.tie (NULL);          
}                                                     

inline void Solve () {
   cin >> n;
   for (int i = 1; i <= n; i ++) cin >> x[i] >> y[i] >> d[i];
   ld l = 0, r = 250000000;
   while (r - l > eps) {
      ld m1 = l + (r - l) / 3;
      ld m2 = r - (r - l) / 3; 
      if (f (m1) > f (m2)) l = m1;
      else r = m2;
   }
   ld L = 0, R = 250000000;
   for (int it = 0; it <= 100; it ++) {
      ld mid = L + R >> 1;
      if (f (mid) < f (mid + 1)) R = mid;
      else L = mid;        
   }
   cout << fixed << setprecision (9) << min (f (L), min (f (l), f (r)));
}                                     

main () {                                       
// freopen (".in", "r", stdin);    
// frexopen (".out", "w", stdout);              
   boost ();
   int tt = 1;
// cin >> tt;   
   while (tt --) {
      Solve ();
   }                                               
   return 0;      
}


Compiler output:
a.cc: In function 'void Solve()':
a.cc:98:22: error: invalid operands of types 'ld' {aka 'long double'} and 'int' to binary 'operator>>'
   98 |       ld mid = L + R >> 1;
      |                ~~~~~ ^~ ~
      |                  |      |
      |                  |      int
      |                  ld {aka long double}
a.cc: At global scope:
a.cc:105:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
  105 | main () {
      | ^~~~