Compilare: user.cpp: In function ‘int main()’: user.cpp:24:36: warning: format ‘%lld’ expects argument of type ‘long long int*’, but argument 2 has type ‘int*’ [-Wformat=] scanf("%lld %lld %lld",&a,&b,&c); ^ user.cpp:24:36: warning: format ‘%lld’ expects argument of type ‘long long int*’, but argument 3 has type ‘int*’ [-Wformat=] user.cpp:24:36: warning: format ‘%lld’ expects argument of type ‘long long int*’, but argument 4 has type ‘int*’ [-Wformat=] user.cpp:21:15: warning: unused variable ‘x’ [-Wunused-variable] int a,b,c,x=1; ^ user.cpp:22:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("modulo.in","r",stdin); ^ user.cpp:23:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("modulo.out","w",stdout); ^ user.cpp:24:37: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld %lld %lld",&a,&b,&c); ^