Compilare: user.cpp: In function ‘long long int doit(long long int, long long int)’: user.cpp:9:36: warning: value computed is not used [-Wunused-value] if (p < 0) doit(1/n, p * (-1)) % MOD; ^ user.cpp: In function ‘int main()’: user.cpp:24:28: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘long long int’ [-Wformat=] printf("%d", doit(n, p)); ^ user.cpp: In function ‘long long int doit(long long int, long long int)’: user.cpp:14:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp: In function ‘int main()’: user.cpp:19:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("lgput.in","r",stdin); ^ user.cpp:20:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("lgput.out","w",stdout); ^ user.cpp:22:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld %lld\n", &n, &p); ^