Compilare: user.cpp: In function ‘int main()’: user.cpp:13: warning: comparison between signed and unsigned integer expressions user.cpp:16: warning: comparison between signed and unsigned integer expressions user.cpp:22: warning: comparison between signed and unsigned integer expressions user.cpp:32: warning: comparison between signed and unsigned integer expressions user.cpp:8: warning: unused variable ‘var’ user.cpp:8: warning: ‘ind’ may be used uninitialized in this function