[C++] 백준(BOJ) 1110번 더하기 사이클

https://www.acmicpc.net/problem/1110

1110번: 더하기 사이클

 

 

#include <iostream>
using namespace std;

int main() {
    int n;
    int cycle = 0;
    int first = 0, second = 0, sum = 0;
    int result = 0;

    cin >> n;

    if (n<10) {
        n = n*10 + n;
    }

    result = n;

    while(1) {

        first = result / 10;
        second = result % 10;
        sum = first + second;
        result = (second * 10) + (sum % 10);

        cycle ++;

        if (result == n)
            break;

    }

    cout << cycle << endl;
}