Compilare: user.cpp: In function ‘int comp(punct, punct)’: user.cpp:16:33: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] return (A.y<B.y || A.y==B.y && A.x<B.x); ^ user.cpp: In function ‘void acoperire()’: user.cpp:57:11: warning: unused variable ‘u’ [-Wunused-variable] float u,umin,aa,bb,cc; ^ user.cpp:57:13: warning: unused variable ‘umin’ [-Wunused-variable] float u,umin,aa,bb,cc; ^ user.cpp:57:18: warning: unused variable ‘aa’ [-Wunused-variable] float u,umin,aa,bb,cc; ^ user.cpp:57:21: warning: unused variable ‘bb’ [-Wunused-variable] float u,umin,aa,bb,cc; ^ user.cpp:57:24: warning: unused variable ‘cc’ [-Wunused-variable] float u,umin,aa,bb,cc; ^ user.cpp: In function ‘int main()’: user.cpp:86:18: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&n); ^ user.cpp:88:37: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%f%f",&v[i].x,&v[i].y); ^