Compilare: user.cpp: In function ‘int cauta(int)’: user.cpp:16:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<v[a].size();j++) ^ user.cpp:14:9: warning: variable ‘g’ set but not used [-Wunused-but-set-variable] int g,j; ^ user.cpp: In function ‘void citire()’: user.cpp:39:11: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(op==3) ^ user.cpp:23:11: warning: unused variable ‘j’ [-Wunused-variable] int i,j,x,op,poz; ^ user.cpp:24:10: warning: unused variable ‘g’ [-Wunused-variable] bool g; ^