View Compilation Error

0_0_39826873_489.cpp: In function 'int dfs(int, int, int, bool)':
0_0_39826873_489.cpp:21:1: error: a function-definition is not allowed here before '{' token
   21 | {
      | ^
0_0_39826873_489.cpp:33:1: error: a function-definition is not allowed here before '{' token
   33 | { memset(f,-1,sizeof(f));
      | ^
0_0_39826873_489.cpp:39:2: error: expected '}' at end of input
   39 | }
      |  ^
0_0_39826873_489.cpp:6:1: note: to match this '{'
    6 | {
      | ^