Friendly Numbers

    1#include <bits/stdc++.h>
    2using namespace std;
    3using ll = long long;
    4const int inf = 1e9;
    5const long long INF = 1e17; //❄️
    6void solve() {
    7    int n; cin >> n;
    8    int ans = 0;
    9    for (int i = n; i < n + 100; i++) {
    10        string c = to_string(i);
    11        int cnt = 0;
    12        for (int j = 0; j < c.size(); j++) {
    13            cnt += c[j] - '0';
    14        }
    15        if (n + cnt == i) ans++;
    16    }
    17    cout << ans << '\n';
    18}
    19int main() {
    20    ios::sync_with_stdio(0); cin.tie(0); 
    21    int t; cin >> t;
    22    while (t--) {
    23        solve();
    24    }
    25    return 0;
    26}