比赛 EYOI与SBOI开学欢乐赛5th 评测结果 AATTTTTTTT
题目名称 积木游戏 最终得分 20
用户昵称 HeSn 运行时间 8.000 s
代码语言 C++ 内存使用 4.59 MiB
提交时间 2022-09-16 20:11:21
显示代码纯文本
#include<bits/stdc++.h>
using namespace std;
int n, m, a[110], b[110], c[110], ans;
void dfs(int x, int cs, int s, int la, int lb) {
	if(cs > m || x > n + 1) {
		return ;
	}
//	cout << s << endl;
	ans = max(ans, s);
	dfs(x + 1, cs, s, la, lb);
	dfs(x + 1, cs + 1, s + c[x], a[x], b[x]);
	dfs(x + 1, cs + 1, s + c[x], b[x], a[x]);
	dfs(x + 1, cs + 1, s + b[x], a[x], c[x]);
	dfs(x + 1, cs + 1, s + b[x], c[x], a[x]);
	dfs(x + 1, cs + 1, s + a[x], b[x], c[x]);
	dfs(x + 1, cs + 1, s + a[x], c[x], b[x]);
	if(!cs) {
		return ;
	}
	if(a[x] <= la && b[x] <= lb) {
		dfs(x + 1, cs, s + c[x], a[x], b[x]);
	}
	if(b[x] <= la && a[x] <= lb) {
		dfs(x + 1, cs, s + c[x], b[x], a[x]);
	}
	if(a[x] <= la && c[x] <= lb) {
		dfs(x + 1, cs, s + b[x], a[x], c[x]);
	}
	if(c[x] <= la && a[x] <= lb) {
		dfs(x + 1, cs, s + b[x], c[x], a[x]);
	}
	if(b[x] <= la && c[x] <= lb) {
		dfs(x + 1, cs, s + a[x], b[x], c[x]);
	}
	if(c[x] <= la && b[x] <= lb) {
		dfs(x + 1, cs, s + a[x], c[x], b[x]);
	}
}
signed main() {
	freopen("buildinggame.in", "r", stdin);
	freopen("buildinggame.out", "w", stdout);
	cin >> n >> m;
	for(int i = 1; i <= n; i ++) {
		cin >> a[i] >> b[i] >> c[i];
	}
	dfs(1, 0, 0, 0, 0);
	cout << ans;
    return 0;
}