/in/foo.cc: In function 'long long int mult(long long int, long long int, long long int)':
/in/foo.cc:25:5: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
     if(ans<0)ans+=yyb;if(ans>=yyb)ans-=yyb;
     ^~
/in/foo.cc:25:23: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
     if(ans<0)ans+=yyb;if(ans>=yyb)ans-=yyb;
                       ^~
/in/foo.cc: In function 'long long int ap(long long int, long long int, long long int)':
/in/foo.cc:30:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(ri int i(1);((ull)1<<i)<=n;++i)
                     ~~~~~~~~~~~^~~
/in/foo.cc:35:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         if((ull)1<<i<=n)
            ~~~~~~~~~^~~