oj.uz

답안 #43508

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
43508 2018-03-16T19:53:10 Z XmtosX Ice Hockey World Championship (CEOI15_bobek) C++14
100 / 100
 440 ms 25376 KB 
#include <bits//stdc++.h>
using namespace std;
const int mod=1e9+7;
int n;
long long m,a[50];
vector <long long> v1,v2;
void bt (int pos,int x,long long sum)
{
    if (pos==x)
    {
        if (x==n)
            v2.push_back(sum);
        else
            v1.push_back(sum);
        return;
    }
    bt(pos+1,x,sum);
    bt(pos+1,x,sum+a[pos]);
}
int main()
{
    cin >>n>>m;
    for (int i=0;i<n;i++)
        cin >>a[i];
    v2.push_back(m+1);
    bt(0,n/2,0);
    bt(n/2,n,0);
    sort(v2.begin(),v2.end());
    long long ans=0;
    for (int i=0;i<v1.size();i++)
    {
        long long x=(m-v1[i]);
        ans+= ((upper_bound(v2.begin(),v2.end(),x)-v2.begin()));
    }
    cout <<ans;
    return 0;
}

Compilation message

bobek.cpp: In function 'int main()':
bobek.cpp:30:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i=0;i<v1.size();i++)
                   ^

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 252 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 352 KB Output is correct
2 Correct 1 ms 492 KB Output is correct
3 Correct 1 ms 528 KB Output is correct
4 Correct 1 ms 604 KB Output is correct
5 Correct 1 ms 604 KB Output is correct
6 Correct 1 ms 604 KB Output is correct
7 Correct 1 ms 604 KB Output is correct

Subtask #3
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 604 KB Output is correct
2 Correct 1 ms 604 KB Output is correct
3 Correct 1 ms 620 KB Output is correct
4 Correct 1 ms 620 KB Output is correct
5 Correct 2 ms 624 KB Output is correct
6 Correct 2 ms 624 KB Output is correct
7 Correct 1 ms 624 KB Output is correct

Subtask #4
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 624 KB Output is correct
2 Correct 2 ms 624 KB Output is correct
3 Correct 1 ms 624 KB Output is correct
4 Correct 1 ms 624 KB Output is correct
5 Correct 2 ms 624 KB Output is correct
6 Correct 1 ms 624 KB Output is correct
7 Correct 2 ms 624 KB Output is correct

Subtask #5
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 25 ms 3296 KB Output is correct
2 Correct 94 ms 6868 KB Output is correct
3 Correct 422 ms 25268 KB Output is correct
4 Correct 90 ms 25268 KB Output is correct
5 Correct 11 ms 25268 KB Output is correct
6 Correct 6 ms 25268 KB Output is correct
7 Correct 10 ms 25268 KB Output is correct

Subtask #6
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 39 ms 25268 KB Output is correct
2 Correct 28 ms 25268 KB Output is correct
3 Correct 184 ms 25268 KB Output is correct
4 Correct 2 ms 25268 KB Output is correct
5 Correct 5 ms 25268 KB Output is correct
6 Correct 11 ms 25268 KB Output is correct
7 Correct 10 ms 25268 KB Output is correct

Subtask #7
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 66 ms 25268 KB Output is correct
2 Correct 131 ms 25268 KB Output is correct
3 Correct 129 ms 25268 KB Output is correct
4 Correct 2 ms 25268 KB Output is correct
5 Correct 49 ms 25268 KB Output is correct
6 Correct 184 ms 25268 KB Output is correct
7 Correct 73 ms 25268 KB Output is correct

Subtask #8
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 285 ms 25268 KB Output is correct
2 Correct 26 ms 25268 KB Output is correct
3 Correct 9 ms 25268 KB Output is correct
4 Correct 1 ms 25268 KB Output is correct
5 Correct 7 ms 25268 KB Output is correct
6 Correct 164 ms 25268 KB Output is correct
7 Correct 10 ms 25268 KB Output is correct

Subtask #9
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 26 ms 25268 KB Output is correct
2 Correct 92 ms 25268 KB Output is correct
3 Correct 8 ms 25268 KB Output is correct
4 Correct 8 ms 25268 KB Output is correct
5 Correct 70 ms 25268 KB Output is correct
6 Correct 19 ms 25268 KB Output is correct
7 Correct 180 ms 25268 KB Output is correct

Subtask #10
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 335 ms 25268 KB Output is correct
2 Correct 30 ms 25268 KB Output is correct
3 Correct 9 ms 25268 KB Output is correct
4 Correct 440 ms 25376 KB Output is correct
5 Correct 74 ms 25376 KB Output is correct
6 Correct 11 ms 25376 KB Output is correct
7 Correct 23 ms 25376 KB Output is correct