Compilare: main.cpp: In function 'int main()': main.cpp:30:149: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=] printf("%d", (((fact[k+n-1]*1LL*inv(fact[n]))%mod*1LL*inv(fact[k-1]))%mod*1LL*(((fact[k+m-1]*1LL*inv(fact[m]))%mod*1LL*inv(fact[k-1]))%mod))%mod); ^ main.cpp:22:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] { freopen("hagi.in", "r", stdin); ^ main.cpp:23:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("hagi.out", "w", stdout); ^ main.cpp:25:32: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d", &k, &n, &m); ^