Compilare: user.cpp: In function ‘int calc(int)’: user.cpp:7:11: warning: unused variable ‘i’ [-Wunused-variable] int k,i,m; ^ user.cpp:7:13: warning: unused variable ‘m’ [-Wunused-variable] int k,i,m; ^ user.cpp: In function ‘int calc2(int)’: user.cpp:19:11: warning: unused variable ‘i’ [-Wunused-variable] int k,i,m; ^ user.cpp:19:13: warning: unused variable ‘m’ [-Wunused-variable] int k,i,m; ^ user.cpp: In function ‘int main()’: user.cpp:39:27: warning: format ‘%lld’ expects argument of type ‘long long int*’, but argument 2 has type ‘int*’ [-Wformat=] scanf("%lld%lld",&p,&x); ^ user.cpp:39:27: warning: format ‘%lld’ expects argument of type ‘long long int*’, but argument 3 has type ‘int*’ [-Wformat=] user.cpp:37:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("risc2.in","r",stdin); ^ user.cpp:38:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("risc2.out","w",stdout); ^ user.cpp:39:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld%lld",&p,&x); ^ user.cpp:41:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&f[k]); ^