View Compilation Error

0_0_38710864_7417.cpp: In function 'void cal(long long int, long long int)':
0_0_38710864_7417.cpp:19:17: error: 'fl' was not declared in this scope
   19 |                 fl[Hash(a, b % a)].pb(b);
      |                 ^~
0_0_38710864_7417.cpp:20:39: error: 'f' was not declared in this scope
   20 |                 if(min(a, b % a) > 0) f[Hash(a, b % a)]++;
      |                                       ^
0_0_38710864_7417.cpp:23:17: error: 'fr' was not declared in this scope
   23 |                 fr[Hash(a % b, b)].pb(a);
      |                 ^~
0_0_38710864_7417.cpp:24:39: error: 'f' was not declared in this scope
   24 |                 if(min(a % b, b) > 0) f[Hash(a % b, b)]++;
      |                                       ^