View Compilation Error

0_0_39460035_24472.cpp: In function 'int ff(int)':
0_0_39460035_24472.cpp:27:53: error: expected ':' before ';' token
   27 | inline int ff(int x){return fa[x]==x?fa[x]=ff(fa[x]);}
      |                                                     ^
      |                                                     :
0_0_39460035_24472.cpp:27:53: error: expected primary-expression before ';' token