1的数目

#include<iostream>
using namespace std;

int Count(long n){
    long count = 0;
    long  n1 = 1;
    int nN = 0;
    int gN = 0;
    int hN = 0;
    if (n <= 0){
        return 0;
    }
    while (n / n1 != 0){
        nN = n - (n / n1)*n1;
        gN = (n / n1) % 10;
        hN = n / (n1 * 10);
        if (gN == 0){
            count += hN*n1;
        }
        else if (gN == 1){
            count += hN*n1 + nN + 1;
        }
        else
        {
            count += (hN + 1)*n1;
        }
        n1 *= 10;
    }
    return count;
}

int main(){
    int a;
    cin >> a;
    cout<<Count(a);
    int i;
    for (i = 0; i < 2147483647; i++)
    {
        if (Count(i) == i)
        {
            cout << i << endl;
        }
    }
    return 0;
}