/in/foo.cc: In function 'int main()':
/in/foo.cc:16:57: error: too many arguments to function 'int main()'
   16 |                                                 ans=main(tot,ans);
      |                                                     ~~~~^~~~~~~~~
/in/foo.cc:4:5: note: declared here
    4 | int main()
      |     ^~~~
/in/foo.cc:15:53: warning: unused variable 'cost' [-Wunused-variable]
   15 |                                                 int cost=s*i+m*j+l*k;
      |                                                     ^~~~