ricehub.cpp: In function 'int main()':
ricehub.cpp:34:14: error: 'read_input' was not declared in this scope
read_input();
^
ricehub.cpp:35:17: error: 'R' was not declared in this scope
ans = besthub(R,L,X,B);
^
ricehub.cpp:35:19: error: 'L' was not declared in this scope
ans = besthub(R,L,X,B);
^
ricehub.cpp:35:21: error: 'X' was not declared in this scope
ans = besthub(R,L,X,B);
^
ricehub.cpp:35:23: error: 'B' was not declared in this scope
ans = besthub(R,L,X,B);
^
ricehub.cpp:36:11: error: 'solution' was not declared in this scope
if(ans==solution)
^