Compilare: user.cpp: In function ‘int main()’: user.cpp:19:10: warning: statement has no effect [-Wunused-value] for(i;i<=strlen(sir);) { ^ user.cpp:19:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i;i<=strlen(sir);) { ^ user.cpp:23:24: warning: NULL used in arithmetic [-Wpointer-arith] if(cuv[0]!=NULL) { ^ user.cpp: In function ‘void cuvant(int&)’: user.cpp:58:10: warning: statement has no effect [-Wunused-value] for(i;sir[i]!=',' && sir[i]!=')' && sir[i]!='(';i++) cuv[nr++]=sir[i]; ^