Compilare: user.cpp:5:84: warning: narrowing conversion of ‘6227020800ll’ from ‘long long int’ to ‘int’ inside { } [-Wnarrowing] int v[]={0,1,2,6,24,120,720,5040,40320,362880,3628800,39916800,479001600,6227020800}; ^ user.cpp:5:84: warning: overflow in implicit constant conversion [-Woverflow] user.cpp: In function ‘int main()’: user.cpp:8:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("sumfact.in", "r", stdin); ^ user.cpp:9:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("sumfact.out", "w", stdout); ^ user.cpp:10:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^