Compilare: user.cpp: In function ‘int main()’: user.cpp:11: warning: format ‘%c’ expects type ‘char*’, but argument 3 has type ‘int*’ user.cpp:13: warning: format ‘%c’ expects type ‘char*’, but argument 3 has type ‘int*’ user.cpp:35: warning: name lookup of ‘i’ changed user.cpp:27: warning: matches this ‘i’ under ISO standard rules user.cpp:32: warning: matches this ‘i’ under old rules user.cpp:10: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:11: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:13: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result