/in/foo.cc: In function 'void solve()':
/in/foo.cc:53:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
         for(len=0;(1<<len)<=lim;len++);lim=(1<<len);len--;
         ^~~
/in/foo.cc:53:40: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
         for(len=0;(1<<len)<=lim;len++);lim=(1<<len);len--;
                                        ^~~