Compilare: user.cpp: In function ‘int cif(int, int)’: user.cpp:10:7: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(x==2) ^ user.cpp:21:8: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(x==3) ^ user.cpp:32:8: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(x==4) ^ user.cpp:37:8: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(x==7) ^ user.cpp:48:8: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(x==8) ^ user.cpp:59:8: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(x==9) ^ user.cpp:64:1: warning: control reaches end of non-void function [-Wreturn-type] } ^