Compilare: user.cpp: In function ‘int cif(int, int)’: user.cpp:12:7: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(x==2) ^ user.cpp:23:8: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(x==3) ^ user.cpp:34:8: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(x==4) ^ user.cpp:39:8: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(x==7) ^ user.cpp:50:8: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(x==8) ^ user.cpp:61:8: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(x==9) ^ user.cpp:66:1: warning: control reaches end of non-void function [-Wreturn-type] } ^