详解见：http://bonniebbs.is-programmer.com/posts/40073.html

#include <iostream>
#include <cstdio>
#define N 305
using namespace std;

int main()
{
    int n;
    int c1[N], c2[N];
    while(scanf("%d", &n), n)
    {
        for(int i=0; i<=n; i++)
        {
            c1[i] = 1;
            c2[i] = 0;
        }
        for(int i=2; i*i<=n; i++)
        {
            for(int j=0; j<=n; j++)
            {
                for(int k=0; k+j<=n; k+=i*i)
                {
                    c2[k+j] += c1[j];
                }
            }
            for(int j=0; j<=n; j++)
            {
                c1[j] = c2[j];
                c2[j] = 0;
            }
        }
        cout << c1[n] << endl;
    }
    return 0;
}