UVa 11450 Wedding shopping (DP)

/*0.035s*/

#include<bits/stdc++.h>
using namespace std;

bool dp[205];
vector<int> tmp;///临时数组

int main()
{
	int t, m, c, k, cost, i, mx, tmpmx;
	bool finalok, ok;
	scanf("%d", &t);
	while (t--)
	{
		scanf("%d%d", &m, &c);
		memset(dp, 0, sizeof(dp));
		finalok = dp[tmpmx = 0] = true;
		while (c--)
		{
			scanf("%d", &k);
			ok = false;
			tmp.clear();
			while (k--)
			{
				scanf("%d", &cost);
				if (finalok)
					for (i = 0; i <= mx && i + cost <= m; ++i)
						if (dp[i]) ok = true, tmpmx = max(tmpmx, i + cost), tmp.push_back(i + cost);
			}
			mx = tmpmx;
			memset(dp, 0, sizeof(dp));
			for (i = 0; i < tmp.size(); ++i) dp[tmp[i]] = true;
			if (finalok) finalok = ok;
		}
		if (finalok) printf("%d\n", mx);
		else puts("no solution");
	}
	return 0;
}