Bad compiled

#include <iostream>
#include <cmath>

using namespace std;

int lenghofNum (int x) {
    int len = 0;
    while (x > 0) {
        len++;
        x /= 10;
    }
    return len;
}

int main() {
    int a, b;
    bool flag = false;
    cin >> a >> b;
    for (int i = a; i < b; i++) {
        int len = lenghofNum(i), temp_i = i;
        double s = 0;
        for (int len_temp = len - 1; len_temp >= 0; len_temp--) {
            s += pow(int(temp_i / pow(10, len_temp)), len);
            temp_i = temp_i % (int) pow(10, len_temp);
        }
        if (s == i) {
            flag = true;
            cout << i << " ";
        }
    }
    !flag ? cout << -1 : cout << "";
    cout << "\n";
    return 0;
}