#include <cstdlib> #include <iostream> #include <string> #include <algorithm> using namespace std; #define min 1000 #define max 1111 int int_reverse(int in) { string s = to_string(in); reverse(s.begin(), s.end()); return atoi(s.c_str()); } int main() { for (int i = min; i <= max; i++) { int j = int_reverse(i); if (j / i == 9 && j % i == 0) cout << i << endl; } } // 64 位输出请用 printf("%lld")