Compilare: user.cpp: In function ‘long int permute(long int)’: user.cpp:41:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(long i = 0; i < divk.size(); ++i) { ^ user.cpp: In function ‘int main()’: user.cpp:54:32: warning: format ‘%d’ expects argument of type ‘int*’, but argument 3 has type ‘long int*’ [-Wformat=] fscanf(fin, "%d %d", &n, &k); ^ user.cpp:54:32: warning: format ‘%d’ expects argument of type ‘int*’, but argument 4 has type ‘long int*’ [-Wformat=] user.cpp:58:35: warning: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘long int’ [-Wformat=] fprintf(fout, "%d", permute(n)); ^ user.cpp:54:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d %d", &n, &k); ^