Compilare: user.cpp: In function ‘int main()’: user.cpp:96:27: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘long long int’ [-Wformat=] printf("%d" , ans - si); ^ user.cpp:27:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("biscuiti.in" , "r" , stdin); ^ user.cpp:28:43: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("biscuiti.out" , "w" , stdout); ^ user.cpp:74:9: warning: ‘p’ may be used uninitialized in this function [-Wmaybe-uninitialized] for(int i = 1 ; i <= p ; ++i) { ^