Compilare: user.cpp: In function ‘void citire()’: user.cpp:14:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0;i<strlen(a);i++) ^ user.cpp: In function ‘int trans(int*)’: user.cpp:35:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int putere(int, int)’: user.cpp:28:1: warning: control reaches end of non-void function [-Wreturn-type] } ^