Eroare de compilare: user.cpp: In function ‘void afisare(int)’: user.cpp:60:26: error: ‘itoa’ was not declared in this scope char s[12];itoa(a,s,2); ^ user.cpp:61:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int a=1;a<=5-strlen(s);a++) cout<<'0'; ^ user.cpp: In function ‘int main()’: user.cpp:69:15: warning: unused variable ‘m’ [-Wunused-variable] int n=20, m, i, x, y,j,k=0; ^ user.cpp:69:21: warning: unused variable ‘x’ [-Wunused-variable] int n=20, m, i, x, y,j,k=0; ^ user.cpp:69:24: warning: unused variable ‘y’ [-Wunused-variable] int n=20, m, i, x, y,j,k=0; ^