# | 제출 시각 | 아이디 | 문제 | 언어 | 결과 | 실행 시간 | 메모리 |
---|---|---|---|---|---|---|---|
1121534 | vjudge1 | Ice Hockey World Championship (CEOI15_bobek) | C++17 | 1086 ms | 20900 KiB |
이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define ld double
const int INF = 1e18;
const int mod = 12345;
const int sz = 3e5 + 5;
const int usz = 1e6 + 5;
signed main()
{
ios_base::sync_with_stdio(0);cin.tie(0);
int n , m;
cin >> n >> m;
vector < int > a(n);
for(int i = 0;i < n;i++) cin >> a[i];
sort(a.begin() , a.end());
vector < int > q1;
vector < int > q2;
for(int i = 0;i < n / 2 + (n & 1);i++) q1.push_back(a[i]);
for(int i = n / 2 + (n & 1);i < n;i++) q2.push_back(a[i]);
vector < int > pos1;
vector < int > pos2;
for(int bit = 0;bit <= pow(2 , q1.size()) - 1;bit++)
{
int sum = 0;
for(int i = 0;i < q1.size();i++)
{
if((1 << i) & bit)
{
sum += q1[i];
}
}
if(sum <= m) pos1.push_back(sum);
}
for(int bit = 0;bit <= pow(2 , q2.size()) - 1;bit++)
{
int sum = 0;
for(int i = 0;i < q2.size();i++)
{
if((1 << i) & bit)
{
sum += q2[i];
}
}
if(sum <= m) pos2.push_back(sum);
}
sort(pos1.begin() , pos1.end());
sort(pos2.begin() , pos2.end());
int ans = 0;
for(int i = 0;i < pos1.size();i++)
{
for(int j = 0;j < pos2.size();j++)
{
if(pos1[i] + pos2[j] <= m) ans++;
}
}
cout << ans << endl;
}
컴파일 시 표준 에러 (stderr) 메시지
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