运行 ID: 313179

Main.cc: In function ‘int main()’:
Main.cc:9:5: error: ‘else’ without a previous ‘if’
     else if(abs(a)==abs(b)){
     ^~~~
Main.cc:17:3: error: expected ‘;’ before ‘else’
   else if(abs(a)(a, c)’ from ‘void’ to ‘bool’
   swap(a,c)&&swap(a,b); 
   ~~~~^~~~~
Main.cc:18:18: error: could not convert ‘std::swap(a, b)’ from ‘void’ to ‘bool’
   swap(a,c)&&swap(a,b); 
              ~~~~^~~~~
Main.cc:27:3: error: expected ‘}’ before ‘else’
   else if(abs(a)(a, c)’ from ‘void’ to ‘bool’
    swap(a,c)&&swap(a,b);
    ~~~~^~~~~
Main.cc:29:19: error: could not convert ‘std::swap(a, b)’ from ‘void’ to ‘bool’
    swap(a,c)&&swap(a,b);
               ~~~~^~~~~
Main.cc: At global scope:
Main.cc:33:2: error: expected unqualified-id before ‘else’
  else if(abs(b)==abs(c)){
  ^~~~
Main.cc:37:2: error: ‘cout’ does not name a type; did you mean ‘cosl’?
  cout<