Eroare de compilare: main.cpp: In function 'int main()': main.cpp:21:2: error: expected ',' or ';' before 'long' 21 | long long b=0; | ^~~~ main.cpp:27:9: error: 'b' was not declared in this scope 27 | b=a; | ^ main.cpp:33:12: error: 'b' was not declared in this scope 33 | b=a; | ^ main.cpp:39:11: error: 'b' was not declared in this scope 39 | fout<<b*b; | ^ main.cpp:20:9: warning: unused variable 'k' [-Wunused-variable] 20 | long n,k,a=2 | ^ Non zero exit status: 1