Run id: 92600

Main.cc: In function 'int main()':
Main.cc:20:15: error: 'sort' was not declared in this scope
     sort(a,a+n);
               ^
Main.cc:10:9: warning: unused variable 'b' [-Wunused-variable]
     int b=0,aa;
         ^
Main.cc:10:13: warning: unused variable 'aa' [-Wunused-variable]
     int b=0,aa;
             ^