View Compilation Error

0_0_34602712_401.cpp: In function 'void dfs(int)':
0_0_34602712_401.cpp:21:2: error: expected primary-expression before '}' token
  }
  ^
0_0_34602712_401.cpp:21:2: error: return-statement with a value, in function returning 'void' [-fpermissive]
0_0_34602712_401.cpp:21:2: error: expected ';' before '}' token
0_0_34602712_401.cpp:24:3: error: expected ';' before 'dfs'
   dfs(gf[x][i]);
   ^
0_0_34602712_401.cpp: In function 'int main()':
0_0_34602712_401.cpp:33:3: error: 'g' was not declared in this scope
   g[b].push_back(a); 
   ^