Compilare: user.cpp: In function ‘bool subsir(char*, char*)’: user.cpp:12:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i<strlen(x) && j<strlen(y)) ^ user.cpp:12:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i<strlen(x) && j<strlen(y)) ^ user.cpp:15:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i==strlen(x)) return true; ^ user.cpp: In function ‘int main()’: user.cpp:47:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(strlen(nume[i])>max) {max=strlen(nume[i]); poz=i;} ^ user.cpp:20:26: warning: unused variable ‘lung’ [-Wunused-variable] char nume[201][5001],lung[]=""; ^