Compilare: main.cpp: In function 'int main()': main.cpp:55:60: warning: suggest parentheses around '&&' within '||' [-Wparentheses] while(e.x<it->x || (e.x>it->x && e.y>it->y)&& ok==1) ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~ main.cpp:63:21: warning: this 'if' clause does not guard... [-Wmisleading-indentation] if(e.x>it->x && e.y>it->y) ^~ main.cpp:65:25: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if' nr++; ^~