Compilare: user.cpp: In function ‘int main()’: user.cpp:86:73: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘long long int’ [-Wformat=] printf ("%d\n", (1LL * ans.a[0][WantedConf] * pow (comb, mod - 2)) % mod); ^ user.cpp:71:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("cameleoni.in", "r", stdin); ^ user.cpp:72:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("cameleoni.out", "w", stdout); ^ user.cpp:74:64: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d\n%c %c %c %c", &N, &c1, &c2, &c3, &c4), mod = 666013; ^