BOJ 6751 - From 1987 to 2013 [C++]

문제

링크

풀이

#include <iostream>
#include <vector>
using namespace std;
 
bool check(int n) {
  vector<bool> cnt(10, false);
  while (n) {
    if (cnt[n % 10]) return false;
    cnt[n % 10] = true;
    n /= 10;
  }
  return true;
}
 
void solve(void) {
  int y; cin >> y;
 
  while (!check(++y));
  cout << y;
}
 
int main(void) {
  ios::sync_with_stdio(false);
  cin.tie(nullptr);
 
  solve();
  return 0;
}