uva11137Dp

题意：给出n，问将n拆成若干个正整数只和，有多少种方法。

#include <cstdio>
#include <cstring>
#include <algorithm>
#include <climits>
#include <string>
#include <iostream>
#include <map>
#include <cstdlib>
#include <list>
#include <set>
#include <queue>
#include <stack>
#include <math.h>
using namespace std;
typedef long long LL;
const LL maxn = 10000;
const LL maxm = 24;
LL dp[maxm + 100][maxn + 100];
void init()
{
    memset(dp, 0, sizeof(dp));
    dp[0][0] = 1;
    for (LL i = 1; i <= maxm; i++){
        for (LL j = 0; j <= maxn; j++){
            for (LL k = 0; j + k*i*i*i <= maxn; k++){
                dp[i][j + k*i*i*i] += dp[i - 1][j];
            }
        }
    }
}

int main()
{
    LL n;
    init();
    while (cin >> n){
        cout << dp[maxm][n] << endl;
    }
    return 0;
}