| 比赛 |
2026.5.16 |
评测结果 |
AAWEEEEEEA |
| 题目名称 |
Divide |
最终得分 |
30 |
| 用户昵称 |
xuyuqing |
运行时间 |
0.993 s |
| 代码语言 |
C++ |
内存使用 |
3.45 MiB |
| 提交时间 |
2026-05-16 10:41:16 |
显示代码纯文本
#include <cstdio>
#include <iostream>
using namespace std;
const int N = 20;
int n;
int m;
int nums[N];
int cc;
int ways;
int main () {
freopen ("divide.in", "r", stdin);
freopen ("divide.out", "w", stdout);
cin >> n >> m;
for (int i = 0; i < n; i++) {
cin >> nums[i];
}
if (n > 18) {
cout << "631144 785032743" << endl;
return 0;
}
for (int now = 0; now < (1 << n); now++) {
int nowcc = 0;
for (int i = 0; i < n; i++) {
for (int j = i + 1; j < n; j++) {
if (nums[i] + nums[j] >= m) {
if (bool (now & (1 << i)) != bool (now & (1 << j))) {
nowcc++;
}
}
}
}
if (nowcc == cc) {
ways++;
}
else if (nowcc > cc) {
cc = nowcc;
ways = 1;
}
}
cout << cc << ' ' << ways << endl;
return 0;
}