Compilare: user.cpp: In function ‘int main()’: user.cpp:21: warning: format ‘%d’ expects type ‘int*’, but argument 3 has type ‘long unsigned int*’ user.cpp:27: warning: comparison between signed and unsigned integer expressions user.cpp:11: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:14: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:16: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:21: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result