Compilare: user.cpp:7:161: warning: narrowing conversion of ‘4295491584ll’ from ‘long long int’ to ‘int’ inside { } [-Wnarrowing] int Ans[20] = {0, 1, 5, 20, 76, 288, 1104, 4288, 16832, 66560, 264448, 1053696, 1053696, 16801792, 67162112, 268550144, 1073987584, 4295491584, 1114112, 2359296}; ^ user.cpp:7:161: warning: overflow in implicit constant conversion [-Woverflow] user.cpp: In function ‘void read()’: user.cpp:13:44: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ultimulcartus.in", "r", stdin); ^ user.cpp:14:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &n, &m); ^ user.cpp:16:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &a[i]); ^ user.cpp: In function ‘void write()’: user.cpp:64:46: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ultimulcartus.out", "w", stdout); ^