View Compilation Error

0_0_38825191_21714.cpp: In function 'void mina()':
0_0_38825191_21714.cpp:136:11: error: a function-definition is not allowed here before '{' token
  136 | int main(){
      |           ^
0_0_38825191_21714.cpp:140:2: error: expected '}' at end of input
  140 | }
      |  ^
0_0_38825191_21714.cpp:54:12: note: to match this '{'
   54 | void mina(){
      |            ^