C++ 알고리즘 - 백준 4673 셀프 넘버

https://www.acmicpc.net/problem/4673

 

#include <bits/stdc++.h>
#define endl "\n"

using namespace std;

int arr[11111];

int self(int n) {
	return n +
		(n / 10000) +
		(n % 10000 / 1000) +
		(n % 1000 / 100) +
		(n % 100 / 10) +
		(n % 10 / 1);
}

void CPP_INIT() {
	ios::sync_with_stdio(false);
	cin.tie(NULL);
	cout.tie(NULL);
}

int main(void) {
	CPP_INIT();

	for (int i = 1; self(i) < 11111; i++) {
		arr[self(i)]++;
	}

	for (int i = 1; i <= 10000; i++) {
		if (arr[i] == 0) cout << i << endl;
	}
}