View Compilation Error

0_0_38246818_5567.cpp: In function 'void Find(int, int, int)':
0_0_38246818_5567.cpp:53:9: error: 'mx' was not declared in this scope
  if(cnt>mx) return l;
         ^
0_0_38246818_5567.cpp:53:20: error: return-statement with a value, in function returning 'void' [-fpermissive]
  if(cnt>mx) return l;
                    ^