题解 | #提取不重复的整数#
提取不重复的整数
https://www.nowcoder.com/practice/253986e66d114d378ae8de2e6c4577c1
#include <iostream> #include <string> using namespace std; int main() { int num; cin >> num; string str = to_string(num), out = ""; str = string(str.rbegin(), str.rend()); for (auto item : str) { if (out.find(item) == out.npos) out += item; } cout << out << endl; } // 64 位输出请用 printf("%lld")