Compilare: user.cpp: In function ‘int main()’: user.cpp:24: warning: format ‘%i’ expects type ‘int*’, but argument 3 has type ‘long int*’ user.cpp:25: warning: format ‘%i’ expects type ‘int*’, but argument 3 has type ‘long int*’ user.cpp:26: warning: format ‘%i’ expects type ‘int*’, but argument 3 has type ‘long int*’ user.cpp:32: warning: format ‘%i’ expects type ‘int’, but argument 3 has type ‘long int’ user.cpp:20: warning: unused variable ‘ch’ user.cpp:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result