Eroare de compilare: main.cpp: In function 'int main()': main.cpp:51:5: error: expected ';' before 'long' long double arie=0; ^~~~ main.cpp:51:23: warning: statement has no effect [-Wunused-value] long double arie=0; ^ main.cpp:58:9: error: 'arie' was not declared in this scope arie+=(long double)xant*y-(long double)x*yant; ^~~~ main.cpp:62:5: error: 'arie' was not declared in this scope arie+=(long double)xant*yinit-(long double)xinit*yant; ^~~~ Non zero exit status: 1