Compilare: user.cpp: In function ‘int main()’: user.cpp:18:47: warning: format ‘%lld’ expects argument of type ‘long long int*’, but argument 5 has type ‘int*’ [-Wformat=] fscanf(fin, "%d%d%lld%lld", &c, &k, &p, &a); ^ user.cpp:21:29: warning: format ‘%d’ expects argument of type ‘int*’, but argument 3 has type ‘long long int*’ [-Wformat=] fscanf(fin, "%d", &b); ^ user.cpp:18:48: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d%lld%lld", &c, &k, &p, &a); ^ user.cpp:21:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &b); ^