Compilare: user.cpp: In function ‘void write()’: user.cpp:34:67: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘long long int’ [-Wformat=] printf("%d\n", (1LL * fact[k - 1] * fact[k - 1] * 2) % MOD); ^ user.cpp:37:63: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘long long int’ [-Wformat=] printf("%d\n", (1LL * fact[k - 1] * fact[k] * 4) % MOD); ^ user.cpp: In function ‘void read()’: user.cpp:20:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^