Compilare: user.cpp: In function ‘void add()’: user.cpp:22:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<v[cn].copii.size(); ++i) ~^~~~~~~~~~~~~~~~~~~ user.cpp: In function ‘void delet()’: user.cpp:49:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<v[cn].copii.size() && cp+2<lg; ++i) ~^~~~~~~~~~~~~~~~~~~ user.cpp: In function ‘void apra()’: user.cpp:64:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<v[cn].copii.size() && cp+2<lg; ++i) ~^~~~~~~~~~~~~~~~~~~ user.cpp:81:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0;i<v[ln].copii.size();++i) ~^~~~~~~~~~~~~~~~~~~ user.cpp:63:33: warning: variable ‘apr’ set but not used [-Wunused-but-set-variable] int cn=0,lg=strlen(ch),cp=0,apr,ln; ^~~ user.cpp: In function ‘void chibrit()’: user.cpp:96:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<v[cn].copii.size(); ++i) ~^~~~~~~~~~~~~~~~~~~ user.cpp:107:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (i==v[cn].copii.size()-1) ~^~~~~~~~~~~~~~~~~~~~~~ user.cpp:95:14: warning: unused variable ‘lg’ [-Wunused-variable] int cn=0,lg=strlen(ch),cp=0; ^~ user.cpp: In function ‘void apra()’: user.cpp:63:37: warning: ‘ln’ may be used uninitialized in this function [-Wmaybe-uninitialized] int cn=0,lg=strlen(ch),cp=0,apr,ln; ^~