View Compilation Error

0_0_21733796_25746.cpp:73:2: error: 'a' does not name a type
 }a;
  ^
0_0_21733796_25746.cpp:98:1: error: expected '}' at end of input
 }
 ^
0_0_21733796_25746.cpp: In member function 'void SPFA::init(int)':
0_0_21733796_25746.cpp:28:5: error: a function-definition is not allowed here before '{' token
     {
     ^
0_0_21733796_25746.cpp:37:5: error: a function-definition is not allowed here before '{' token
     {
     ^
0_0_21733796_25746.cpp:73:1: error: expected '}' at end of input
 }a;
 ^
0_0_21733796_25746.cpp: In member function 'int SPFA::main()':
0_0_21733796_25746.cpp:83:9: error: 'a' was not declared in this scope
         a.init(n + m);
         ^
0_0_21733796_25746.cpp: At global scope:
0_0_21733796_25746.cpp:98:1: error: expected unqualified-id at end of input
 }
 ^