Compilare: user.cpp: In function ‘int main()’: user.cpp:16: warning: format ‘%d’ expects type ‘int*’, but argument 3 has type ‘int’ user.cpp:9: warning: unused variable ‘j’ user.cpp:9: warning: unused variable ‘c’ user.cpp:9: warning: unused variable ‘tot’ user.cpp:12: 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 user.cpp:16: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:13: warning: ‘i’ is used uninitialized in this function