Compilare: user.cpp: In function ‘int main()’: user.cpp:16: warning: array subscript has type ‘char’ user.cpp:19: warning: array subscript has type ‘char’ user.cpp:27: warning: array subscript has type ‘char’ user.cpp:30: warning: array subscript has type ‘char’ user.cpp:13: warning: ‘poz2’ may be used uninitialized in this function user.cpp:13: warning: ‘poz1’ may be used uninitialized in this function