poj2453

简单题

#include <iostream>
#include <cstdlib>
#include <cstring>
#include <cstdio>
using namespace std;

int count(int x)
{
    int ret = 0;
    while (x > 0)
    {
        if (x % 2 == 1)
            ret++;
        x /= 2;
    }
    return ret;
}

int main()
{
    //freopen("D:\\t.txt", "r", stdin);
    int n;
    while (scanf("%d", &n) != EOF && n != 0)
    {
        int cnt = count(n);
        while (n++)
            if (cnt == count(n))
            {
                printf("%d\n", n);
                break;
            }
    }
    return 0;
}