Compilare: main.cpp: In function 'int main()': main.cpp:27:9: warning: this 'while' clause does not guard... [-Wmisleading-indentation] while ((1<<ly)<=y) ^~~~~ main.cpp:29:13: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'while' lx--; ^~