Compilare: user.cpp:75:21: warning: invalid suffix on literal; C++11 requires a space between literal and identifier [-Wliteral-suffix] while(s[i]>='a'and s[i]<='z') ^ user.cpp: In function ‘int main()’: user.cpp:68:11: warning: converting to non-pointer type ‘char’ from NULL [-Wconversion-null] s[loc]=NULL; ^ user.cpp:79:15: warning: converting to non-pointer type ‘char’ from NULL [-Wconversion-null] cuv[j]=NULL; ^ user.cpp:33:23: warning: unused variable ‘k’ [-Wunused-variable] int n,i,tt,nr,loc,k,j,rand[100],cmin,nea,r; ^ user.cpp:33:27: warning: unused variable ‘rand’ [-Wunused-variable] int n,i,tt,nr,loc,k,j,rand[100],cmin,nea,r; ^ user.cpp:33:37: warning: unused variable ‘cmin’ [-Wunused-variable] int n,i,tt,nr,loc,k,j,rand[100],cmin,nea,r; ^ user.cpp:34:10: warning: unused variable ‘min’ [-Wunused-variable] char min,copie[100],aux; ^ user.cpp:34:14: warning: unused variable ‘copie’ [-Wunused-variable] char min,copie[100],aux; ^ user.cpp:34:25: warning: unused variable ‘aux’ [-Wunused-variable] char min,copie[100],aux; ^