Compilare: user.cpp: In function ‘int calcul(float)’: user.cpp:13:14: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] while(x>0&&x>9||x<0&&x<-9) ^ user.cpp: In function ‘int formarenr(char*, int&, int&)’: user.cpp:29:10: warning: statement has no effect [-Wunused-value] for(i; a[i]>47&&a[i]<=57; i++) ^ user.cpp: In function ‘void prelucrare()’: user.cpp:85:11: warning: statement has no effect [-Wunused-value] for(i ;i < x;) ^