/in/foo.cc: In function 'void getln(int*, int*, int)':
/in/foo.cc:82:3: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   for(i=n-1;i;i--)b[i]=(ll)b[i-1]*inv[i]%P;b[0]=0;
   ^~~
/in/foo.cc:82:44: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
   for(i=n-1;i;i--)b[i]=(ll)b[i-1]*inv[i]%P;b[0]=0;
                                            ^