Compilare: user.cpp: In function ‘bool compare(Results, Results)’: user.cpp:12:50: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] return (a.color < b.color || a.color == b.color && a.area < b.area); ^ user.cpp: In function ‘int main()’: user.cpp:38:52: warning: unused variable ‘temp_area’ [-Wunused-variable] int n, a, b, i, j, max =0, nr,areasum=0,total,p=0,temp_area; ^