Compilare: user.cpp: In function ‘int main(int, char**)’: user.cpp:55:126: warning: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘ull {aka long long int}’ [-Wformat=] (fast_pow_mod(factorials[K], ((N % MOD) * inverse_mod(K,MOD) ) % MOD, MOD) * inverse_mod(factorials[K - N % K],MOD)) % MOD); ^ user.cpp:48:23: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(i, "%d\n", &T); ^ user.cpp:52:31: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(i, "%d %d\n", &N, &K); ^