Compilare: user.cpp: In function ‘int main()’: user.cpp:23:26: warning: format ‘%ld’ expects argument of type ‘long int*’, but argument 3 has type ‘int*’ [-Wformat=] fscanf(pFile,"%ld",&n); ^ user.cpp:34:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int i = 0; i < strlen(a); ++i ) ^