0_0_33625715_681.cpp:2:1: error: '_int64' does not name a type _int64 hanoi(int N,int K) ^ 0_0_33625715_681.cpp: In function 'int main()': 0_0_33625715_681.cpp:16:29: error: 'hanoi' was not declared in this scope printf("%I64d\n",hanoi(N,K)); ^