Compilare: user.cpp: In function ‘int main()’: user.cpp:20:23: warning: variable ‘k’ set but not used [-Wunused-but-set-variable] int short i,l,k,j; ^ user.cpp:47:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(strlen(c)>x) {x=strlen(c); strcpy(auxi,c);} ^ user.cpp:48:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if(strlen(c)==x && strcmp(c,auxi)<0) {strcpy(auxi,c);} ^ user.cpp: In function ‘int comparare(char*, char*)’: user.cpp:12:1: warning: control reaches end of non-void function [-Wreturn-type] } ^