Compilare: user.cpp: In function ‘int main()’: user.cpp:23:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("multiplu2.in","r",stdin); ^ user.cpp:24:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("multiplu2.out","w",stdout); ^ user.cpp:25:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &n , &k); ^ user.cpp:36:18: warning: ‘p’ may be used uninitialized in this function [-Wmaybe-uninitialized] total *= help( power(p + 1 , k) , power(p , k)) % 10000; ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~