/in/foo.cc: In function 'void gn(long long int&)':
/in/foo.cc:19:5: warning: this 'while' clause does not guard... [-Wmisleading-indentation]
     while((c=getchar())>='0'&&c<='9')x=x*10+c-'0';x*=sg;}
     ^~~~~
/in/foo.cc:19:51: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'while'
     while((c=getchar())>='0'&&c<='9')x=x*10+c-'0';x*=sg;}
                                                   ^