BOJ 32685 - 4-LSB [C++]

문제

링크

풀이

#include <iostream>
#include <string>
using namespace std;
 
void solve(void) {
  int a; cin >> a;
  int b; cin >> b;
  int c; cin >> c;
 
  string ans = to_string((a & 15) << 8 | (b & 15) << 4 | (c & 15));
  while (ans.length() < 4) ans = '0' + ans;
  cout << ans;
}
 
int main(void) {
  ios::sync_with_stdio(false);
  cin.tie(nullptr);
 
  solve();
  return 0;
}