Compilare: user.cpp: In function ‘bool subsir(char*, char*)’: user.cpp:16:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i==strlen(x)) return true; ^ user.cpp: In function ‘int main()’: user.cpp:51:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(strlen(nume[i])>max) ^ user.cpp:56:62: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(strcmp(nume[i],nume[poz])<0&&strlen(nume[i])==max) poz=i; ^ user.cpp:21:26: warning: unused variable ‘lung’ [-Wunused-variable] char nume[201][5001],lung[]=""; ^