Compilare: main.cpp: In function 'void desc(long long int, long long int, long long int*)': main.cpp:21:28: warning: 'sizeof' on array function parameter 'v' will return size of 'long long int*' [-Wsizeof-array-argument] memset(v , 0 , sizeof(v)); ^ main.cpp:19:51: note: declared here void desc(long long x , long long p , long long v[]) ^ main.cpp:21:26: warning: argument to 'sizeof' in 'void* memset(void*, int, size_t)' call is the same expression as the destination; did you mean to dereference it? [-Wsizeof-pointer-memaccess] memset(v , 0 , sizeof(v)); ^ main.cpp: In function 'int main()': main.cpp:31:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("jap2.in" , "r" , stdin); ^ main.cpp:32:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("jap2.out" , "w" , stdout); ^ main.cpp:34:32: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%lld%lld" , &p , &q); ^ main.cpp:40:36: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%lld%lld" , &a , &b); ^