Compilare: user.cpp: In function ‘int main()’: user.cpp:261:4: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if (decop[j]<=9) ^ user.cpp:280:4: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if (decop[j]<=9) ^ user.cpp:26:67: warning: variable ‘n2f’ set but not used [-Wunused-but-set-variable] int n,i,x,u=0,u1=0,u2=0,n1=0,n2=0,min=10,j,c1=0,c2=0,e,push,n1f=0,n2f=0,o,mindif,lastmindif,n1final=0,n2final=0,mindifer=1000000000; ^