Compilare: main.cpp: In function 'bool coliniare(punct, punct, punct)': main.cpp:29:9: warning: unused variable 'ok' [-Wunused-variable] int ok=0; ^~ main.cpp:30:12: warning: unused variable 'a1' [-Wunused-variable] double a1,a2; ^~ main.cpp:30:15: warning: unused variable 'a2' [-Wunused-variable] double a1,a2; ^~ main.cpp: In function 'void afisare(std::vector<punct>)': main.cpp:48:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<q.size();i++) ~^~~~~~~~~ main.cpp: In function 'bool linie()': main.cpp:56:12: warning: unused variable 'y_min' [-Wunused-variable] double y_min=inf,y_max=-inf,x_min=inf,x_max=-inf; ^~~~~ main.cpp:56:22: warning: unused variable 'y_max' [-Wunused-variable] double y_min=inf,y_max=-inf,x_min=inf,x_max=-inf; ^~~~~ main.cpp:56:33: warning: unused variable 'x_min' [-Wunused-variable] double y_min=inf,y_max=-inf,x_min=inf,x_max=-inf; ^~~~~ main.cpp:56:43: warning: unused variable 'x_max' [-Wunused-variable] double y_min=inf,y_max=-inf,x_min=inf,x_max=-inf; ^~~~~ main.cpp:58:11: warning: unused variable 'int_1' [-Wunused-variable] int i,int_1,int_2,ext_1,ext_2; ^~~~~ main.cpp:58:17: warning: unused variable 'int_2' [-Wunused-variable] int i,int_1,int_2,ext_1,ext_2; ^~~~~ main.cpp:58:23: warning: unused variable 'ext_1' [-Wunused-variable] int i,int_1,int_2,ext_1,ext_2; ^~~~~ main.cpp:58:29: warning: unused variable 'ext_2' [-Wunused-variable] int i,int_1,int_2,ext_1,ext_2; ^~~~~ main.cpp: In function 'bool triunghi()': main.cpp:101:9: warning: unused variable 'i' [-Wunused-variable] int i,max=0; ^