【題目敘述】https://zerojudge.tw/ShowProblem?problemid=d044
#include <iostream>
using namespace std;
const int maxn = 1000000;
bool num[maxn+5];
void solve(int x) {
if (x > maxn) return;
int sum = x;
while (x) {
sum += x % 10;
x /= 10;
}
if (sum <= maxn) {
if (!num[sum]) {
num[sum] = true;
solve(sum);
} else {
return;
}
} else {
return;
}
}
int main() {
for (int i = 1; i <= maxn; i++) {
if (!num[i]) solve(i);
}
for (int i = 1; i <= maxn; i++) {
if (!num[i]) cout << i << "\n";
}
return 0;
}