| 比赛 |
2026.5.16 |
评测结果 |
AAWMMMMMMA |
| 题目名称 |
Divide |
最终得分 |
30 |
| 用户昵称 |
LikableP |
运行时间 |
1.344 s |
| 代码语言 |
C++ |
内存使用 |
1.50 MiB |
| 提交时间 |
2026-05-16 12:01:06 |
显示代码纯文本
#include <cstdio>
int n, m;
int w[20];
int group[20];
int maxx, maxi;
void dfs(int now) {
if (now > n) {
int ans = 0;
for (int i = 1; i <= n; ++i) {
for (int j = i + 1; j <= n; ++j) if (group[i] != group[j]) {
if (w[i] + w[j] >= m) ++ans;
}
}
if (ans > maxx) {
maxx = ans;
maxi = 1;
} else if (ans == maxx) {
++maxi;
}
return ;
}
group[now] = 1;
dfs(now + 1);
group[now] = 2;
dfs(now + 1);
return ;
}
int main() {
freopen("divide.in", "r", stdin);
freopen("divide.out", "w", stdout);
scanf("%d %d", &n, &m);
for (int i = 1; i <= n; ++i) {
scanf("%d", &w[i]);
}
dfs(1);
printf("%d %d\n", maxx, maxi);
return 0;
}