View Compilation Error

0_0_39356469_29146.cpp: In function 'long double calc(Node)':
0_0_39356469_29146.cpp:34:13: error: 'l' was not declared in this scope
   34 |         if (l == 1e18 && r == 1e18) return 1e18;
      |             ^
0_0_39356469_29146.cpp:34:26: error: 'r' was not declared in this scope
   34 |         if (l == 1e18 && r == 1e18) return 1e18;
      |                          ^
0_0_39356469_29146.cpp:36:13: error: 'l' was not declared in this scope
   36 |         if (l * l > r * r) sum += r * r;
      |             ^
0_0_39356469_29146.cpp:36:21: error: 'r' was not declared in this scope
   36 |         if (l * l > r * r) sum += r * r;
      |                     ^