Compilare: user.cpp: In function ‘int main()’: user.cpp:12:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(k<=strlen(text)-1 && (strchr(v,text[k]) || text[k]==' ')) ^ user.cpp:12:47: warning: array subscript has type ‘char’ [-Wchar-subscripts] while(k<=strlen(text)-1 && (strchr(v,text[k]) || text[k]==' ')) ^ user.cpp:12:59: warning: array subscript has type ‘char’ [-Wchar-subscripts] while(k<=strlen(text)-1 && (strchr(v,text[k]) || text[k]==' ')) ^ user.cpp:18:28: warning: converting to non-pointer type ‘char’ from NULL [-Wconversion-null] text[strlen(text)-1]=NULL; ^ user.cpp:19:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<=strlen(text)-1;i++) ^ user.cpp:9:35: warning: unused variable ‘sp’ [-Wunused-variable] char text[256],v[]=",.!?-:;",*sp,*q,k=0; ^ user.cpp:9:39: warning: unused variable ‘q’ [-Wunused-variable] char text[256],v[]=",.!?-:;",*sp,*q,k=0; ^