Compilare: user.cpp: In function ‘int main()’: user.cpp:23:22: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘long long unsigned int’ [-Wformat=] printf("%d",prod); ^ user.cpp:11:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&k); ^ user.cpp:22:18: warning: ‘prim’ may be used uninitialized in this function [-Wmaybe-uninitialized] prod = prim * prim; ^