40pts求助

#include <bits/stdc++.h>
#define int long long
#define endl '\n'
using namespace std;
int s, n, m;
int a[105][105];
int f[40005];
signed main()
{
    ios_base::sync_with_stdio(0);
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    cin >> s >> n >> m;
    for (int i = 1; i <= s; i++)
    {
        for (int j = 1; j <= n; j++)
        {
            cin >> a[i][j];
            a[i][j] = a[i][j] * 2 + 1;
        }
    }
    for (int i = 1; i <= s; i++)
        for (int j = 1; j <= n; j++)
            for (int k = m; k > a[i][j]; k--)
                f[k] = max(f[k], f[k - a[i][j]] + j);
    cout << f[m] << endl;
    return 0;
}